What is the Least Common Multiple of 7542 and 7560?

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 7542 and 7560 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7542 and 7560, than apply into the LCM equation.

GCF(7542,7560) = 18
LCM(7542,7560) = ( 7542 × 7560) / 18
LCM(7542,7560) = 57017520 / 18
LCM(7542,7560) = 3167640

Least Common Multiple (LCM) of 7542 and 7560 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7542 and 7560. First we will calculate the prime factors of 7542 and 7560.

Prime Factorization of 7542

Prime Factorization of 7560

Now multiplying the highest exponent prime factors to calculate the LCM of 7542 and 7560.

LCM(7542,7560) = 2³ × 3³ × 419¹ × 5¹ × 7¹
LCM(7542,7560) = 3167640