What is the Least Common Multiple of 79720 and 79732?

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 79720 and 79732 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79720 and 79732, than apply into the LCM equation.

GCF(79720,79732) = 4
LCM(79720,79732) = ( 79720 × 79732) / 4
LCM(79720,79732) = 6356235040 / 4
LCM(79720,79732) = 1589058760

Least Common Multiple (LCM) of 79720 and 79732 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79720 and 79732. First we will calculate the prime factors of 79720 and 79732.

Prime Factorization of 79720

Prime Factorization of 79732

Now multiplying the highest exponent prime factors to calculate the LCM of 79720 and 79732.

LCM(79720,79732) = 2³ × 5¹ × 1993¹ × 31¹ × 643¹
LCM(79720,79732) = 1589058760