What is the Least Common Multiple of 30615 and 30620?

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 30615 and 30620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30615 and 30620, than apply into the LCM equation.

GCF(30615,30620) = 5
LCM(30615,30620) = ( 30615 × 30620) / 5
LCM(30615,30620) = 937431300 / 5
LCM(30615,30620) = 187486260

Least Common Multiple (LCM) of 30615 and 30620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30615 and 30620. First we will calculate the prime factors of 30615 and 30620.

Prime Factorization of 30615

Prime Factorization of 30620

Now multiplying the highest exponent prime factors to calculate the LCM of 30615 and 30620.

LCM(30615,30620) = 3¹ × 5¹ × 13¹ × 157¹ × 2² × 1531¹
LCM(30615,30620) = 187486260