What is the Least Common Multiple of 20915 and 20925?

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 20915 and 20925 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20915 and 20925, than apply into the LCM equation.

GCF(20915,20925) = 5
LCM(20915,20925) = ( 20915 × 20925) / 5
LCM(20915,20925) = 437646375 / 5
LCM(20915,20925) = 87529275

Least Common Multiple (LCM) of 20915 and 20925 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20915 and 20925. First we will calculate the prime factors of 20915 and 20925.

Prime Factorization of 20915

Prime Factorization of 20925

Now multiplying the highest exponent prime factors to calculate the LCM of 20915 and 20925.

LCM(20915,20925) = 5² × 47¹ × 89¹ × 3³ × 31¹
LCM(20915,20925) = 87529275