What is the Least Common Multiple of 12561 and 12572?

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 12561 and 12572 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12561 and 12572, than apply into the LCM equation.

GCF(12561,12572) = 1
LCM(12561,12572) = ( 12561 × 12572) / 1
LCM(12561,12572) = 157916892 / 1
LCM(12561,12572) = 157916892

Least Common Multiple (LCM) of 12561 and 12572 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12561 and 12572. First we will calculate the prime factors of 12561 and 12572.

Prime Factorization of 12561

Prime Factorization of 12572

Now multiplying the highest exponent prime factors to calculate the LCM of 12561 and 12572.

LCM(12561,12572) = 3¹ × 53¹ × 79¹ × 2² × 7¹ × 449¹
LCM(12561,12572) = 157916892