What is the Least Common Multiple of 42748 and 42764?

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 42748 and 42764 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42748 and 42764, than apply into the LCM equation.

GCF(42748,42764) = 4
LCM(42748,42764) = ( 42748 × 42764) / 4
LCM(42748,42764) = 1828075472 / 4
LCM(42748,42764) = 457018868

Least Common Multiple (LCM) of 42748 and 42764 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42748 and 42764. First we will calculate the prime factors of 42748 and 42764.

Prime Factorization of 42748

Prime Factorization of 42764

Now multiplying the highest exponent prime factors to calculate the LCM of 42748 and 42764.

LCM(42748,42764) = 2² × 10687¹ × 10691¹
LCM(42748,42764) = 457018868