https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:common-multiples-and-common-factors/v/common-factors-and-common-multiples 2024-05-29T07:44:09.146521489Z Common factors and common multiples Description In this video we discuss the concept of common factors and then common multiples and also the foundation that builds HCF and LCM Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Common factors and common multiples Description In this video we discuss the concept of common factors and then common multiples and also the foundation that builds HCF and LCM https://cdn.kastatic.org/ka-youtube-converted/eTvTj1j2cSI.mp4/eTvTj1j2cSI.mp4 416 Prime Time https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:common-multiples-and-common-factors/v/finding-factors-and-multiples-indian-accent 2025-06-05T06:01:43.515132284Z Finding factors and multiples Sal uses divisibility rules to determine if numbers are factors of 154 and then finds multiples of 14. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Finding factors and multiples Sal uses divisibility rules to determine if numbers are factors of 154 and then finds multiples of 14. https://cdn.kastatic.org/ka-youtube-converted/-R8VD80xia8.mp4/-R8VD80xia8.mp4 246 Prime Time https://www.khanacademy.org/math/cc-fourth-grade-math/imp-factors-multiples-and-patterns/imp-factors-and-multiples/e/identify-multiples 2026-08-05T06:00:50.142616206Z Identify multiples Practice using skip counting and division to identify multiples of a given number. Lindsay exercise https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:common-multiples-and-common-factors/e/identify-common-factors 2026-08-05T06:20:44.393440803Z Identify common factors Identify the common factors for two numbers. Aanand exercise https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:common-multiples-and-common-factors/e/lcm-and-hcf-10-a 2026-07-31T05:01:29.744098093Z Factors and multiples of a number LCM and HCF ashish exercise https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:prime-numbers/v/prime-numbers-indian-accent 2025-06-05T07:09:47.125536708Z Prime numbers Courses on Khan Academy are always 100% free. Start practising—and saving your progress—now! (add course link here) Timestamps: Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Prime numbers Courses on Khan Academy are always 100% free. Start practising—and saving your progress—now! (add course link here) Timestamps: Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by https://cdn.kastatic.org/ka-youtube-converted/9AiPnas-us0.mp4/9AiPnas-us0.mp4 502 Prime Time https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:prime-numbers/v/recognizing-prime-and-composite-numbers-indian-accent 2025-05-30T05:30:36.604331212Z Recognizing prime and composite numbers Can you recognize the prime numbers in this group of numbers? Which are prime, composite, or neither? Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Recognizing prime and composite numbers Can you recognize the prime numbers in this group of numbers? Which are prime, composite, or neither? https://cdn.kastatic.org/ka-youtube-converted/e7A9RLC_rS4.mp4/e7A9RLC_rS4.mp4 275 Prime Time https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:prime-numbers/e/b6-prime-numbers-1 2026-08-05T07:00:41.104753841Z Prime numbers Prime numbers ashish exercise https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:prime-numbers/e/conceptual-questions-on-odd--even--prime--composite-numbers 2026-08-05T07:00:41.104753841Z Conceptual questions on odd, even, prime, composite numbers Conceptual questions on odd, even, prime, composite numbers anmol exercise https://www.khanacademy.org/math/cc-fourth-grade-math/imp-factors-multiples-and-patterns/imp-prime-and-composite-numbers/e/composite_numbers 2026-08-03T06:20:34.642923388Z Identify composite numbers Identify composite numbers less than 100. Ben Alpert exercise https://www.khanacademy.org/math/cc-fourth-grade-math/imp-factors-multiples-and-patterns/imp-prime-and-composite-numbers/e/prime-and-composite-numbers 2026-08-05T07:00:41.104753841Z Prime and composite numbers Practice identifying prime and composite numbers. Lindsay exercise https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:co-prime-numbers/e/identify-pair-of-co-prime-numbers 2026-08-03T06:20:34.642923388Z Identify co-prime numbers Identify whether a pair of numbers is co-prime or not. Aanand exercise https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:prime-factorization/v/prime-factorization-exercise-india 2025-03-28T07:16:04.402919306Z Prime factorization exercise Prime factorization exercise (Indian Accent) Aakash Bagga video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Prime factorization exercise Prime factorization exercise (Indian Accent) https://cdn.kastatic.org/ka-youtube-converted/aqO-WK1SkSc.mp4/aqO-WK1SkSc.mp4 229 Prime Time https://www.khanacademy.org/math/pre-algebra/pre-algebra-factors-multiples/pre-algebra-prime-factorization-prealg/e/prime_factorization 2026-08-05T06:20:44.393440803Z Prime factorization Factor two-digit numbers into their prime factorizations. Marcia Lee exercise https://www.khanacademy.org/math/revision-mh-math-class-6/x01cb2212e31ce997:decimal-fractions/x01cb2212e31ce997:divisibility-hcf-lcm/v/divisibility-tests-for-2-3-4-5-6-9-10-indian-accent 2025-05-30T05:30:36.604331212Z Divisibility tests for 2, 3, 4, 5, 6, 9, 10 Worked example of basic divisibility tests. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Divisibility tests for 2, 3, 4, 5, 6, 9, 10 Worked example of basic divisibility tests. https://cdn.kastatic.org/ka-youtube-converted/gIn4jV5r92w.mp4/gIn4jV5r92w.mp4 407 Prime Time https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:divisibility-tests/v/divisibility-tests-of-8-11-and-12 2024-05-29T07:44:09.146521489Z Divisibility tests of 8, 11 and 12 Description In this video we discuss the divisibility tests of 8 ,11 and 12 Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Divisibility tests of 8, 11 and 12 Description In this video we discuss the divisibility tests of 8 ,11 and 12 https://cdn.kastatic.org/ka-youtube-converted/I2r4zXvXan8.mp4/I2r4zXvXan8.mp4 264 Prime Time https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:prime-time/x04ca845a9a148c80:divisibility-tests/v/recognizing-divisibility-indian-accent 2025-06-05T09:01:06.799874579Z Recognizing divisibility Recognising Divisibility. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Recognizing divisibility Recognising Divisibility. https://cdn.kastatic.org/ka-youtube-converted/fIedxKZthIc.mp4/fIedxKZthIc.mp4 366 Prime Time https://www.khanacademy.org/math/6th-engage-ny/engage-6th-module-2/6th-module-2-topic-d/e/divisibility_tests 2026-08-04T13:50:46.515974156Z Divisibility tests Ben Eater exercise