What is the Least Common Multiple of 7538 and 7556?

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 7538 and 7556 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7538 and 7556, than apply into the LCM equation.

GCF(7538,7556) = 2
LCM(7538,7556) = ( 7538 × 7556) / 2
LCM(7538,7556) = 56957128 / 2
LCM(7538,7556) = 28478564

Least Common Multiple (LCM) of 7538 and 7556 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7538 and 7556. First we will calculate the prime factors of 7538 and 7556.

Prime Factorization of 7538

Prime Factorization of 7556

Now multiplying the highest exponent prime factors to calculate the LCM of 7538 and 7556.

LCM(7538,7556) = 2² × 3769¹ × 1889¹
LCM(7538,7556) = 28478564