What is the Least Common Multiple of 90709 and 90721?

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 90709 and 90721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90709 and 90721, than apply into the LCM equation.

GCF(90709,90721) = 1
LCM(90709,90721) = ( 90709 × 90721) / 1
LCM(90709,90721) = 8229211189 / 1
LCM(90709,90721) = 8229211189

Least Common Multiple (LCM) of 90709 and 90721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90709 and 90721. First we will calculate the prime factors of 90709 and 90721.

Prime Factorization of 90709

Prime Factorization of 90721

Now multiplying the highest exponent prime factors to calculate the LCM of 90709 and 90721.

LCM(90709,90721) = 90709¹ × 257¹ × 353¹
LCM(90709,90721) = 8229211189