What is the Least Common Multiple of 65980 and 65998?

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 65980 and 65998 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65980 and 65998, than apply into the LCM equation.

GCF(65980,65998) = 2
LCM(65980,65998) = ( 65980 × 65998) / 2
LCM(65980,65998) = 4354548040 / 2
LCM(65980,65998) = 2177274020

Least Common Multiple (LCM) of 65980 and 65998 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65980 and 65998. First we will calculate the prime factors of 65980 and 65998.

Prime Factorization of 65980

Prime Factorization of 65998

Now multiplying the highest exponent prime factors to calculate the LCM of 65980 and 65998.

LCM(65980,65998) = 2² × 5¹ × 3299¹ × 32999¹
LCM(65980,65998) = 2177274020