What is the Least Common Multiple of 39872 and 39876?

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 39872 and 39876 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39872 and 39876, than apply into the LCM equation.

GCF(39872,39876) = 4
LCM(39872,39876) = ( 39872 × 39876) / 4
LCM(39872,39876) = 1589935872 / 4
LCM(39872,39876) = 397483968

Least Common Multiple (LCM) of 39872 and 39876 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39872 and 39876. First we will calculate the prime factors of 39872 and 39876.

Prime Factorization of 39872

Prime Factorization of 39876

Now multiplying the highest exponent prime factors to calculate the LCM of 39872 and 39876.

LCM(39872,39876) = 2⁶ × 7¹ × 89¹ × 3¹ × 3323¹
LCM(39872,39876) = 397483968