https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:finding-common-ground/x063f95a40c290960:hcf/v/hcf-visualized 2020-10-07T19:09:54Z HCF visualized Finding the HCF from prime factors can sometimes be hard to imagine. Let's look at an interesting way to visualise finding the HCF of two numbers using prime factorisation. Created by Aanand Srinivas video https://cdn.kastatic.org/googleusercontent/lf55e_rmF4FVVOKMq3UTW3HAGBxO6L4tYBOir6rzvjYkID7O-ScKHuUL1Zpz2_adeYSLRUujweUj7xBXUwjw66Ls HCF visualized Finding the HCF from prime factors can sometimes be hard to imagine. Let's look at an interesting way to visualise finding the HCF of two numbers using prime factorisation. Created by https://cdn.kastatic.org/ka-youtube-converted/egf7bSeo4P4.mp4/egf7bSeo4P4.mp4 511 GCD https://www.khanacademy.org/math/revision-mh-math-class-6/x01cb2212e31ce997:decimal-fractions/x01cb2212e31ce997:divisibility-hcf-lcm/v/greatest-common-factor-examples-indian-accent 2025-06-05T06:01:43.515132284Z 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. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw 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/eLH4r7-CpII.mp4/eLH4r7-CpII.mp4 414 GCD https://www.khanacademy.org/math/class-6-tg/x47164056520f4c0a:playing-with-numbers/x47164056520f4c0a:highest-common-factor/v/hcf-by-continued-division-method 2026-01-16T09:40:42.440263577Z HCF by Continued Division Method In this video, we explain how to find the HCF (Highest Common Factor) of two and three numbers using the continued division method. Step by step, we show how repeatedly dividing the larger number by the smaller one and then dividing the divisor by the remainder eventually leads to the HCF. With solved examples, you’ll see how the process works in practice and why it always gives the correct result. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw HCF by Continued Division Method In this video, we explain how to find the HCF (Highest Common Factor) of two and three numbers using the continued division method. Step by step, we show how repeatedly dividing the larger number by the smaller one and then dividing the divisor by the remainder eventually leads to the HCF. With solved examples, you’ll see how the process works in practice and why it always gives the correct result. https://cdn.kastatic.org/ka-youtube-converted/h-5ierFbskw.mp4/h-5ierFbskw.mp4 224 GCD 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 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/class-7-ncf/x063f95a40c290960:finding-common-ground/x063f95a40c290960:hcf/e/hcf-highest-common-factor-word-problems 2026-05-12T22:10:47.015864082Z HCF (highest common factor) word problems Practice solving word problems on the highest common factor (HCF). Nurun Nahar Moon exercise