What is the Least Common Multiple of 15115 and 15128?

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 15115 and 15128 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15115 and 15128, than apply into the LCM equation.

GCF(15115,15128) = 1
LCM(15115,15128) = ( 15115 × 15128) / 1
LCM(15115,15128) = 228659720 / 1
LCM(15115,15128) = 228659720

Least Common Multiple (LCM) of 15115 and 15128 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15115 and 15128. First we will calculate the prime factors of 15115 and 15128.

Prime Factorization of 15115

Prime Factorization of 15128

Now multiplying the highest exponent prime factors to calculate the LCM of 15115 and 15128.

LCM(15115,15128) = 5¹ × 3023¹ × 2³ × 31¹ × 61¹
LCM(15115,15128) = 228659720