What is the Least Common Multiple of 39918 and 39938?

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 39918 and 39938 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39918 and 39938, than apply into the LCM equation.

GCF(39918,39938) = 2
LCM(39918,39938) = ( 39918 × 39938) / 2
LCM(39918,39938) = 1594245084 / 2
LCM(39918,39938) = 797122542

Least Common Multiple (LCM) of 39918 and 39938 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39918 and 39938. First we will calculate the prime factors of 39918 and 39938.

Prime Factorization of 39918

Prime Factorization of 39938

Now multiplying the highest exponent prime factors to calculate the LCM of 39918 and 39938.

LCM(39918,39938) = 2¹ × 3¹ × 6653¹ × 19¹ × 1051¹
LCM(39918,39938) = 797122542