GCF and LCM Calculator with steps

Greatest common factor, least common multiple, factors and prime factors. Type your problem: see the answer, then every step with the reason. Free, no sign-up.

Solved examples

Each one solved step by step, with the reason for every step.

Calculate lcm(6, 8) LCM(6, 8) = 24
Prime factors of 60 60 = 2² × 3 × 5
Factors of 48 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Is 51 prime 51 is not prime
Factors of 12 1, 2, 3, 4, 6, 12
Factors of 20 1, 2, 4, 5, 10, 20
Factors of 30 1, 2, 3, 5, 6, 10, 15, 30
Is 17 prime 17 is prime
Is 21 prime 21 is not prime
Prime factors of 84 84 = 2² × 3 × 7
Factors of 100 1, 2, 4, 5, 10, 20, 25, 50, 100

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Factors and multiples · Foundations · 24 problems, printable worksheet

GCF and LCM Calculator with steps

Solved examples

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