What is the Least Common Multiple of 79978 and 79987?

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 79978 and 79987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79978 and 79987, than apply into the LCM equation.

GCF(79978,79987) = 1
LCM(79978,79987) = ( 79978 × 79987) / 1
LCM(79978,79987) = 6397200286 / 1
LCM(79978,79987) = 6397200286

Least Common Multiple (LCM) of 79978 and 79987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79978 and 79987. First we will calculate the prime factors of 79978 and 79987.

Prime Factorization of 79978

Prime Factorization of 79987

Now multiplying the highest exponent prime factors to calculate the LCM of 79978 and 79987.

LCM(79978,79987) = 2¹ × 39989¹ × 79987¹
LCM(79978,79987) = 6397200286