What is the Least Common Multiple of 91638 and 91642?

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 91638 and 91642 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91638 and 91642, than apply into the LCM equation.

GCF(91638,91642) = 2
LCM(91638,91642) = ( 91638 × 91642) / 2
LCM(91638,91642) = 8397889596 / 2
LCM(91638,91642) = 4198944798

Least Common Multiple (LCM) of 91638 and 91642 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91638 and 91642. First we will calculate the prime factors of 91638 and 91642.

Prime Factorization of 91638

Prime Factorization of 91642

Now multiplying the highest exponent prime factors to calculate the LCM of 91638 and 91642.

LCM(91638,91642) = 2¹ × 3³ × 1697¹ × 45821¹
LCM(91638,91642) = 4198944798