What is the Least Common Multiple of 12621 and 12639?

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 12621 and 12639 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12621 and 12639, than apply into the LCM equation.

GCF(12621,12639) = 3
LCM(12621,12639) = ( 12621 × 12639) / 3
LCM(12621,12639) = 159516819 / 3
LCM(12621,12639) = 53172273

Least Common Multiple (LCM) of 12621 and 12639 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12621 and 12639. First we will calculate the prime factors of 12621 and 12639.

Prime Factorization of 12621

Prime Factorization of 12639

Now multiplying the highest exponent prime factors to calculate the LCM of 12621 and 12639.

LCM(12621,12639) = 3¹ × 7¹ × 601¹ × 11¹ × 383¹
LCM(12621,12639) = 53172273