What is the Least Common Multiple of 6 and 636?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 6 and 636 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6 and 636, than apply into the LCM equation.

GCF(6,636) = 6
LCM(6,636) = ( 6 × 636) / 6
LCM(6,636) = 3816 / 6
LCM(6,636) = 636

Least Common Multiple (LCM) of 6 and 636 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6 and 636. First we will calculate the prime factors of 6 and 636.

Prime Factorization of 6

Prime Factorization of 636

Now multiplying the highest exponent prime factors to calculate the LCM of 6 and 636.

LCM(6,636) = 2² × 3¹ × 53¹
LCM(6,636) = 636