What is the Least Common Multiple of 4980 and 4989?

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 4980 and 4989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4980 and 4989, than apply into the LCM equation.

GCF(4980,4989) = 3
LCM(4980,4989) = ( 4980 × 4989) / 3
LCM(4980,4989) = 24845220 / 3
LCM(4980,4989) = 8281740

Least Common Multiple (LCM) of 4980 and 4989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4980 and 4989. First we will calculate the prime factors of 4980 and 4989.

Prime Factorization of 4980

Prime Factorization of 4989

Now multiplying the highest exponent prime factors to calculate the LCM of 4980 and 4989.

LCM(4980,4989) = 2² × 3¹ × 5¹ × 83¹ × 1663¹
LCM(4980,4989) = 8281740