What is the Least Common Multiple of 91581 and 91591?

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 91581 and 91591 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91581 and 91591, than apply into the LCM equation.

GCF(91581,91591) = 1
LCM(91581,91591) = ( 91581 × 91591) / 1
LCM(91581,91591) = 8387995371 / 1
LCM(91581,91591) = 8387995371

Least Common Multiple (LCM) of 91581 and 91591 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91581 and 91591. First we will calculate the prime factors of 91581 and 91591.

Prime Factorization of 91581

Prime Factorization of 91591

Now multiplying the highest exponent prime factors to calculate the LCM of 91581 and 91591.

LCM(91581,91591) = 3¹ × 7³ × 89¹ × 91591¹
LCM(91581,91591) = 8387995371