What is the Least Common Multiple of 2980 and 2987?

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 2980 and 2987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2980 and 2987, than apply into the LCM equation.

GCF(2980,2987) = 1
LCM(2980,2987) = ( 2980 × 2987) / 1
LCM(2980,2987) = 8901260 / 1
LCM(2980,2987) = 8901260

Least Common Multiple (LCM) of 2980 and 2987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2980 and 2987. First we will calculate the prime factors of 2980 and 2987.

Prime Factorization of 2980

Prime Factorization of 2987

Now multiplying the highest exponent prime factors to calculate the LCM of 2980 and 2987.

LCM(2980,2987) = 2² × 5¹ × 149¹ × 29¹ × 103¹
LCM(2980,2987) = 8901260