What is the Least Common Multiple of 38715 and 38721?

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 38715 and 38721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38715 and 38721, than apply into the LCM equation.

GCF(38715,38721) = 3
LCM(38715,38721) = ( 38715 × 38721) / 3
LCM(38715,38721) = 1499083515 / 3
LCM(38715,38721) = 499694505

Least Common Multiple (LCM) of 38715 and 38721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38715 and 38721. First we will calculate the prime factors of 38715 and 38721.

Prime Factorization of 38715

Prime Factorization of 38721

Now multiplying the highest exponent prime factors to calculate the LCM of 38715 and 38721.

LCM(38715,38721) = 3¹ × 5¹ × 29¹ × 89¹ × 12907¹
LCM(38715,38721) = 499694505