https://www.khanacademy.org/math/class-6-tg/x47164056520f4c0a:playing-with-numbers/x47164056520f4c0a:prime-factorisation/v/methods-of-prime-factorisation 2026-01-16T09:40:42.440263577Z Methods of Prime Factorisation Prime factorisation is all about breaking numbers down into their simplest prime building blocks, and in this video we explain two easy and effective methods to do it: the division method and the factor tree method. Using clear step-by-step examples, you’ll see how the division method works by repeatedly dividing a number by the smallest prime until you reach 1, while the factor tree method splits the number into factors and keeps breaking them down until only primes remain. Both approaches lead to the same unique prime factorization, showing the consistency and beauty of number theory. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Methods of Prime Factorisation Prime factorisation is all about breaking numbers down into their simplest prime building blocks, and in this video we explain two easy and effective methods to do it: the division method and the factor tree method. Using clear step-by-step examples, you’ll see how the division method works by repeatedly dividing a number by the smallest prime until you reach 1, while the factor tree method splits the number into factors and keeps breaking them down until only primes remain. Both approaches lead to the same unique prime factorization, showing the consistency and beauty of number theory. https://cdn.kastatic.org/ka-youtube-converted/IqdOpbEZfnI.mp4/IqdOpbEZfnI.mp4 368 Factors and Multiples 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 Factors and Multiples 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 Factors and Multiples 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 Factors and Multiples https://www.khanacademy.org/math/cc-fourth-grade-math/imp-factors-multiples-and-patterns/imp-factors-and-multiples/e/identify-multiples 2026-04-30T20:20:55.724408584Z 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 2024-07-22T11:22:12.685922863Z 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