What is the Least Common Multiple of 79770 and 79790?

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 79770 and 79790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79770 and 79790, than apply into the LCM equation.

GCF(79770,79790) = 10
LCM(79770,79790) = ( 79770 × 79790) / 10
LCM(79770,79790) = 6364848300 / 10
LCM(79770,79790) = 636484830

Least Common Multiple (LCM) of 79770 and 79790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79770 and 79790. First we will calculate the prime factors of 79770 and 79790.

Prime Factorization of 79770

Prime Factorization of 79790

Now multiplying the highest exponent prime factors to calculate the LCM of 79770 and 79790.

LCM(79770,79790) = 2¹ × 3¹ × 5¹ × 2659¹ × 79¹ × 101¹
LCM(79770,79790) = 636484830