What is the Least Common Multiple of 66615 and 66620?

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 66615 and 66620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66615 and 66620, than apply into the LCM equation.

GCF(66615,66620) = 5
LCM(66615,66620) = ( 66615 × 66620) / 5
LCM(66615,66620) = 4437891300 / 5
LCM(66615,66620) = 887578260

Least Common Multiple (LCM) of 66615 and 66620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66615 and 66620. First we will calculate the prime factors of 66615 and 66620.

Prime Factorization of 66615

Prime Factorization of 66620

Now multiplying the highest exponent prime factors to calculate the LCM of 66615 and 66620.

LCM(66615,66620) = 3¹ × 5¹ × 4441¹ × 2² × 3331¹
LCM(66615,66620) = 887578260