What is the Least Common Multiple of 23115 and 23120?

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 23115 and 23120 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23115 and 23120, than apply into the LCM equation.

GCF(23115,23120) = 5
LCM(23115,23120) = ( 23115 × 23120) / 5
LCM(23115,23120) = 534418800 / 5
LCM(23115,23120) = 106883760

Least Common Multiple (LCM) of 23115 and 23120 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23115 and 23120. First we will calculate the prime factors of 23115 and 23120.

Prime Factorization of 23115

Prime Factorization of 23120

Now multiplying the highest exponent prime factors to calculate the LCM of 23115 and 23120.

LCM(23115,23120) = 3¹ × 5¹ × 23¹ × 67¹ × 2⁴ × 17²
LCM(23115,23120) = 106883760