What is the Least Common Multiple of 4615 and 4620?

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 4615 and 4620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4615 and 4620, than apply into the LCM equation.

GCF(4615,4620) = 5
LCM(4615,4620) = ( 4615 × 4620) / 5
LCM(4615,4620) = 21321300 / 5
LCM(4615,4620) = 4264260

Least Common Multiple (LCM) of 4615 and 4620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4615 and 4620. First we will calculate the prime factors of 4615 and 4620.

Prime Factorization of 4615

Prime Factorization of 4620

Now multiplying the highest exponent prime factors to calculate the LCM of 4615 and 4620.

LCM(4615,4620) = 5¹ × 13¹ × 71¹ × 2² × 3¹ × 7¹ × 11¹
LCM(4615,4620) = 4264260