What is the Least Common Multiple of 79979 and 79989?

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 79979 and 79989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79979 and 79989, than apply into the LCM equation.

GCF(79979,79989) = 1
LCM(79979,79989) = ( 79979 × 79989) / 1
LCM(79979,79989) = 6397440231 / 1
LCM(79979,79989) = 6397440231

Least Common Multiple (LCM) of 79979 and 79989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79979 and 79989. First we will calculate the prime factors of 79979 and 79989.

Prime Factorization of 79979

Prime Factorization of 79989

Now multiplying the highest exponent prime factors to calculate the LCM of 79979 and 79989.

LCM(79979,79989) = 79979¹ × 3¹ × 7¹ × 13¹ × 293¹
LCM(79979,79989) = 6397440231