What is the Least Common Multiple of 7156 and 7172?

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 7156 and 7172 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7156 and 7172, than apply into the LCM equation.

GCF(7156,7172) = 4
LCM(7156,7172) = ( 7156 × 7172) / 4
LCM(7156,7172) = 51322832 / 4
LCM(7156,7172) = 12830708

Least Common Multiple (LCM) of 7156 and 7172 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7156 and 7172. First we will calculate the prime factors of 7156 and 7172.

Prime Factorization of 7156

Prime Factorization of 7172

Now multiplying the highest exponent prime factors to calculate the LCM of 7156 and 7172.

LCM(7156,7172) = 2² × 1789¹ × 11¹ × 163¹
LCM(7156,7172) = 12830708