What is the Least Common Multiple of 84978 and 84991?

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 84978 and 84991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84978 and 84991, than apply into the LCM equation.

GCF(84978,84991) = 1
LCM(84978,84991) = ( 84978 × 84991) / 1
LCM(84978,84991) = 7222365198 / 1
LCM(84978,84991) = 7222365198

Least Common Multiple (LCM) of 84978 and 84991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84978 and 84991. First we will calculate the prime factors of 84978 and 84991.

Prime Factorization of 84978

Prime Factorization of 84991

Now multiplying the highest exponent prime factors to calculate the LCM of 84978 and 84991.

LCM(84978,84991) = 2¹ × 3² × 4721¹ × 84991¹
LCM(84978,84991) = 7222365198