What is the Least Common Multiple of 7560 and 7580?

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 7560 and 7580 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7560 and 7580, than apply into the LCM equation.

GCF(7560,7580) = 20
LCM(7560,7580) = ( 7560 × 7580) / 20
LCM(7560,7580) = 57304800 / 20
LCM(7560,7580) = 2865240

Least Common Multiple (LCM) of 7560 and 7580 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7560 and 7580. First we will calculate the prime factors of 7560 and 7580.

Prime Factorization of 7560

Prime Factorization of 7580

Now multiplying the highest exponent prime factors to calculate the LCM of 7560 and 7580.

LCM(7560,7580) = 2³ × 3³ × 5¹ × 7¹ × 379¹
LCM(7560,7580) = 2865240