https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-gcf/v/greatest-common-divisor 2023-05-23T10:28:13.689545116Z Greatest common factor explained The greatest common divisor (GCD) and greatest common factor (GCF) are the same thing. To find the GCD/GCF of two numbers, list their factors, identify the common factors, and choose the largest one. For example, the GCD/GCF of 12 and 8 is 4. Numbers with a GCD/GCF of 1 are called relatively prime. Sal Khan video https://cdn.kastatic.org/googleusercontent/_zOUMiaOFZknL-4w9DdBzJhAyQL61EQ3l6GsyOZg7kA1PErFh2nT1W4BxxmnEV8VfiC--sELaDPNQ4ajKanUMuDtNg Greatest common factor explained The greatest common divisor (GCD) and greatest common factor (GCF) are the same thing. To find the GCD/GCF of two numbers, list their factors, identify the common factors, and choose the largest one. For example, the GCD/GCF of 12 and 8 is 4. Numbers with a GCD/GCF of 1 are called relatively prime. https://cdn.kastatic.org/ka-youtube-converted/jFd-6EPfnec.mp4/jFd-6EPfnec.mp4 380 HCF and LCM https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-gcf/v/greatest-common-divisor-factor-exercise 2021-06-28T22:10:39Z Greatest common factor examples The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4. GCF is often used to find common denominators. Sal Khan video https://cdn.kastatic.org/googleusercontent/XdoeVt612nBL8cN5yVhH3pn3aa7bI3pANnA6FcLSeAj5go5pP76bz61XYlJltoSNaM2vMnoN4OzXYQR33gd0lt62 Greatest common factor examples The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4. GCF is often used to find common denominators. https://cdn.kastatic.org/ka-youtube-converted/bLTfBvkrfsM.mp4/bLTfBvkrfsM.mp4 410 HCF and LCM https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-gcf/e/greatest_common_divisor 2022-02-04T17:27:52.270593234Z Greatest common factor Find the greatest common factor of 2 or 3 integers. Marcia Lee exercise https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratics-multiplying-factoring/x2f8bb11595b61c86:intro-factoring/v/factoring-linear-binomials 2021-06-30T17:51:08Z Factoring with the distributive property Sal shows how to factor the expression 4x+18 into the expression 2(2x+9). Sal Khan video https://cdn.kastatic.org/googleusercontent/dwrwG-t6ZPrp7Fxu8lcyVSM6RZ1VwfSLBV6w8IH3fGDjIS5QRrngHxH63YvOVUiO__iCwDYg67YA50d40TjNgXI Factoring with the distributive property Sal shows how to factor the expression 4x+18 into the expression 2(2x+9). https://cdn.kastatic.org/ka-youtube-converted/mbb3msmX2xs.mp4/mbb3msmX2xs.mp4 208 HCF and LCM https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-lcm/v/least-common-multiple-exercise 2023-05-23T10:28:13.689545116Z Least common multiple The least common multiple (LCM) is the smallest number that two or more numbers can divide into evenly. To find the LCM, you can use the prime factorization method or list the multiples of each number. Prime factorization involves breaking down numbers into their prime factors and constructing the smallest number with all the factors. Listing multiples involves finding the smallest shared multiple. Both methods help find the LCM of numbers like 18 and 12. Sal Khan video https://cdn.kastatic.org/googleusercontent/SCzY_4g9WMfUlBRCKnOMgSzFmY9HmhBR1cHHpnJWDoqxtZD2DgYX0XwTX8vnHzoPD7U6k3x2deiSlW-UUFP9log Least common multiple The least common multiple (LCM) is the smallest number that two or more numbers can divide into evenly. To find the LCM, you can use the prime factorization method or list the multiples of each number. Prime factorization involves breaking down numbers into their prime factors and constructing the smallest number with all the factors. Listing multiples involves finding the smallest shared multiple. Both methods help find the LCM of numbers like 18 and 12. https://cdn.kastatic.org/ka-youtube-converted/znmPfDfsir8.mp4/znmPfDfsir8.mp4 256 HCF and LCM https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-lcm/v/least-common-multiple-exercise-2 2022-11-16T04:22:43.7414897Z Least common multiple: repeating factors To find the Least Common Multiple (LCM) of two integers, follow these steps: 1) Find the prime factorization of both numbers. 2) Determine which prime factors are needed for the least common multiple (LCM) to be divisible by both numbers. 3) Multiply the necessary prime factors together to get the least common multiple (LCM). Sal Khan video https://cdn.kastatic.org/googleusercontent/MtOMfL5jSvZZDyTzPShTtYObW6HdZ1wtvYOW77m7lZp_CvZ1UP2qOkkNGaeJ5sUQ_KzQLrzfUHKIsAYLbDYu3ev5NA Least common multiple: repeating factors To find the Least Common Multiple (LCM) of two integers, follow these steps: 1) Find the prime factorization of both numbers. 2) Determine which prime factors are needed for the least common multiple (LCM) to be divisible by both numbers. 3) Multiply the necessary prime factors together to get the least common multiple (LCM). https://cdn.kastatic.org/ka-youtube-converted/QUem_2dkB9I.mp4/QUem_2dkB9I.mp4 155 HCF and LCM https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-lcm/v/least-common-multiple-lcm 2023-05-23T10:28:13.689545116Z Least common multiple of three numbers The least common multiple (LCM) is the smallest number that is a multiple of two or more numbers. To find the LCM, you can list the multiples of each number and find the smallest one they share, or use prime factorization to break down the numbers into their prime factors and multiply the highest powers of each factor. Sal Khan video https://cdn.kastatic.org/googleusercontent/AekFmhZdo5bmZkDGP-cK3HTMNKdXZI_ahtN099adj4L3sA_nEh-7bT__3uX7ivHRnKestKa_hJ352VXCizqYuXpv Least common multiple of three numbers The least common multiple (LCM) is the smallest number that is a multiple of two or more numbers. To find the LCM, you can list the multiples of each number and find the smallest one they share, or use prime factorization to break down the numbers into their prime factors and multiply the highest powers of each factor. https://cdn.kastatic.org/ka-youtube-converted/D6yHKOYJiso.mp4/D6yHKOYJiso.mp4 324 HCF and LCM https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-lcm/e/least_common_multiple 2021-06-30T17:51:15Z Least common multiple Find the lcm (least common multiple) of pairs of integers. Marcia Lee exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-lcm/a/least-common-multiple-review 2021-04-29T07:55:58Z Least common multiple review Review least common multiples (LCM) and try some practice problems. article https://www.khanacademy.org/math/mappers/number-and-operations-220-223/x261c2cc7:greatest-common-factor/v/lcm-and-gcf-greatest-common-factor-word-problems 2021-06-28T22:10:39Z GCF & LCM word problems Here we have a couple of word problems--one searching for the least common multiple and the other for the greatest common factor. Just read them with us slowly and follow along. You'll get it. Sal Khan video https://cdn.kastatic.org/googleusercontent/DzFB3vvnNsNE9aUBHAGmlIZTd2qXU7NjBmB8GFB6kat4r6kAPslY-b4qSKYDeHyGhNDahQIAJLYpFqu8XzC7IlL1 GCF & LCM word problems Here we have a couple of word problems--one searching for the least common multiple and the other for the greatest common factor. Just read them with us slowly and follow along. You'll get it. https://cdn.kastatic.org/ka-youtube-converted/1Vb8t7Y-pI0.mp4/1Vb8t7Y-pI0.mp4 514 HCF and LCM https://www.khanacademy.org/math/mappers/number-and-operations-220-223/x261c2cc7:greatest-common-factor/e/gcf-and-lcm-word-problems 2026-04-07T23:17:37.123726494Z GCF & LCM word problems Solve word problems where you either need to find the GCF or LCM. Ben Stenhaug exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-gcf/a/greatest-common-factor-review 2021-04-29T07:49:11Z Greatest common factor review Review greatest common factors (GCF) and try some practice problems. article