What is the Least Common Multiple of 87638 and 87642?

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 87638 and 87642 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87638 and 87642, than apply into the LCM equation.

GCF(87638,87642) = 2
LCM(87638,87642) = ( 87638 × 87642) / 2
LCM(87638,87642) = 7680769596 / 2
LCM(87638,87642) = 3840384798

Least Common Multiple (LCM) of 87638 and 87642 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87638 and 87642. First we will calculate the prime factors of 87638 and 87642.

Prime Factorization of 87638

Prime Factorization of 87642

Now multiplying the highest exponent prime factors to calculate the LCM of 87638 and 87642.

LCM(87638,87642) = 2¹ × 29¹ × 1511¹ × 3⁴ × 541¹
LCM(87638,87642) = 3840384798