What is the Least Common Multiple of 90615 and 90621?

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 90615 and 90621 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90615 and 90621, than apply into the LCM equation.

GCF(90615,90621) = 3
LCM(90615,90621) = ( 90615 × 90621) / 3
LCM(90615,90621) = 8211621915 / 3
LCM(90615,90621) = 2737207305

Least Common Multiple (LCM) of 90615 and 90621 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90615 and 90621. First we will calculate the prime factors of 90615 and 90621.

Prime Factorization of 90615

Prime Factorization of 90621

Now multiplying the highest exponent prime factors to calculate the LCM of 90615 and 90621.

LCM(90615,90621) = 3² × 5¹ × 7¹ × 863¹ × 10069¹
LCM(90615,90621) = 2737207305