What is the Least Common Multiple of 7531 and 7540?

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 7531 and 7540 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7531 and 7540, than apply into the LCM equation.

GCF(7531,7540) = 1
LCM(7531,7540) = ( 7531 × 7540) / 1
LCM(7531,7540) = 56783740 / 1
LCM(7531,7540) = 56783740

Least Common Multiple (LCM) of 7531 and 7540 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7531 and 7540. First we will calculate the prime factors of 7531 and 7540.

Prime Factorization of 7531

Prime Factorization of 7540

Now multiplying the highest exponent prime factors to calculate the LCM of 7531 and 7540.

LCM(7531,7540) = 17¹ × 443¹ × 2² × 5¹ × 13¹ × 29¹
LCM(7531,7540) = 56783740