What is the Least Common Multiple of 81916 and 81932?

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 81916 and 81932 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81916 and 81932, than apply into the LCM equation.

GCF(81916,81932) = 4
LCM(81916,81932) = ( 81916 × 81932) / 4
LCM(81916,81932) = 6711541712 / 4
LCM(81916,81932) = 1677885428

Least Common Multiple (LCM) of 81916 and 81932 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81916 and 81932. First we will calculate the prime factors of 81916 and 81932.

Prime Factorization of 81916

Prime Factorization of 81932

Now multiplying the highest exponent prime factors to calculate the LCM of 81916 and 81932.

LCM(81916,81932) = 2² × 20479¹ × 20483¹
LCM(81916,81932) = 1677885428