What is the Least Common Multiple of 72918 and 72938?

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 72918 and 72938 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72918 and 72938, than apply into the LCM equation.

GCF(72918,72938) = 2
LCM(72918,72938) = ( 72918 × 72938) / 2
LCM(72918,72938) = 5318493084 / 2
LCM(72918,72938) = 2659246542

Least Common Multiple (LCM) of 72918 and 72938 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72918 and 72938. First we will calculate the prime factors of 72918 and 72938.

Prime Factorization of 72918

Prime Factorization of 72938

Now multiplying the highest exponent prime factors to calculate the LCM of 72918 and 72938.

LCM(72918,72938) = 2¹ × 3² × 4051¹ × 36469¹
LCM(72918,72938) = 2659246542