What is the Least Common Multiple of 79621 and 79640?

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 79621 and 79640 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79621 and 79640, than apply into the LCM equation.

GCF(79621,79640) = 1
LCM(79621,79640) = ( 79621 × 79640) / 1
LCM(79621,79640) = 6341016440 / 1
LCM(79621,79640) = 6341016440

Least Common Multiple (LCM) of 79621 and 79640 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79621 and 79640. First we will calculate the prime factors of 79621 and 79640.

Prime Factorization of 79621

Prime Factorization of 79640

Now multiplying the highest exponent prime factors to calculate the LCM of 79621 and 79640.

LCM(79621,79640) = 79621¹ × 2³ × 5¹ × 11¹ × 181¹
LCM(79621,79640) = 6341016440