What is the Least Common Multiple of 2645 and 2657?

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 2645 and 2657 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2645 and 2657, than apply into the LCM equation.

GCF(2645,2657) = 1
LCM(2645,2657) = ( 2645 × 2657) / 1
LCM(2645,2657) = 7027765 / 1
LCM(2645,2657) = 7027765

Least Common Multiple (LCM) of 2645 and 2657 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2645 and 2657. First we will calculate the prime factors of 2645 and 2657.

Prime Factorization of 2645

Prime Factorization of 2657

Now multiplying the highest exponent prime factors to calculate the LCM of 2645 and 2657.

LCM(2645,2657) = 5¹ × 23² × 2657¹
LCM(2645,2657) = 7027765