What is the Least Common Multiple of 74157 and 74172?

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 74157 and 74172 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74157 and 74172, than apply into the LCM equation.

GCF(74157,74172) = 3
LCM(74157,74172) = ( 74157 × 74172) / 3
LCM(74157,74172) = 5500373004 / 3
LCM(74157,74172) = 1833457668

Least Common Multiple (LCM) of 74157 and 74172 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74157 and 74172. First we will calculate the prime factors of 74157 and 74172.

Prime Factorization of 74157

Prime Factorization of 74172

Now multiplying the highest exponent prime factors to calculate the LCM of 74157 and 74172.

LCM(74157,74172) = 3¹ × 19¹ × 1301¹ × 2² × 7¹ × 883¹
LCM(74157,74172) = 1833457668