What is the Least Common Multiple of 2705 and 2715?

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 2705 and 2715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2705 and 2715, than apply into the LCM equation.

GCF(2705,2715) = 5
LCM(2705,2715) = ( 2705 × 2715) / 5
LCM(2705,2715) = 7344075 / 5
LCM(2705,2715) = 1468815

Least Common Multiple (LCM) of 2705 and 2715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2705 and 2715. First we will calculate the prime factors of 2705 and 2715.

Prime Factorization of 2705

Prime Factorization of 2715

Now multiplying the highest exponent prime factors to calculate the LCM of 2705 and 2715.

LCM(2705,2715) = 5¹ × 541¹ × 3¹ × 181¹
LCM(2705,2715) = 1468815