Every number has one prime recipe
However you split it, 360 always ends as 2³ × 3² × 5. That is why the tree can start with any pair of factors and still arrive at the same primes.
Factors, HCF & LCM 🌳
Split any number into its prime factors with a factor tree, list every factor, and find the highest common factor and lowest common multiple of two or three numbers — with a Venn diagram.
Factor trees
Prime factors
Venn diagram
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Good to know
HCF shares, LCM covers
The HCF is the biggest number that divides them all — use it to simplify fractions or cut things into equal pieces. The LCM is the first number they all divide into — use it for common denominators and "when do they meet again".
Nothing leaves your device
Everything is worked out in your browser and nothing is saved. The address bar keeps the numbers, so a link opens the same working.
Tool created by
លោក ណាត ប៊ុនឆ័យ · Mr. Nat Bunchhai
Alpha Academy Cambodia
Number skills make every topic easier.
Our tutors help Stage 7 to Grade 12 students master factors, fractions and the number work everything else depends on.