What is the Least Common Multiple of 42908 and 42916?

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 42908 and 42916 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42908 and 42916, than apply into the LCM equation.

GCF(42908,42916) = 4
LCM(42908,42916) = ( 42908 × 42916) / 4
LCM(42908,42916) = 1841439728 / 4
LCM(42908,42916) = 460359932

Least Common Multiple (LCM) of 42908 and 42916 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42908 and 42916. First we will calculate the prime factors of 42908 and 42916.

Prime Factorization of 42908

Prime Factorization of 42916

Now multiplying the highest exponent prime factors to calculate the LCM of 42908 and 42916.

LCM(42908,42916) = 2² × 17¹ × 631¹ × 10729¹
LCM(42908,42916) = 460359932