What is the Least Common Multiple of 9115 and 9120?

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 9115 and 9120 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9115 and 9120, than apply into the LCM equation.

GCF(9115,9120) = 5
LCM(9115,9120) = ( 9115 × 9120) / 5
LCM(9115,9120) = 83128800 / 5
LCM(9115,9120) = 16625760

Least Common Multiple (LCM) of 9115 and 9120 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9115 and 9120. First we will calculate the prime factors of 9115 and 9120.

Prime Factorization of 9115

Prime Factorization of 9120

Now multiplying the highest exponent prime factors to calculate the LCM of 9115 and 9120.

LCM(9115,9120) = 5¹ × 1823¹ × 2⁵ × 3¹ × 19¹
LCM(9115,9120) = 16625760