What is the Least Common Multiple of 75915 and 75920?

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 75915 and 75920 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75915 and 75920, than apply into the LCM equation.

GCF(75915,75920) = 5
LCM(75915,75920) = ( 75915 × 75920) / 5
LCM(75915,75920) = 5763466800 / 5
LCM(75915,75920) = 1152693360

Least Common Multiple (LCM) of 75915 and 75920 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75915 and 75920. First we will calculate the prime factors of 75915 and 75920.

Prime Factorization of 75915

Prime Factorization of 75920

Now multiplying the highest exponent prime factors to calculate the LCM of 75915 and 75920.

LCM(75915,75920) = 3² × 5¹ × 7¹ × 241¹ × 2⁴ × 13¹ × 73¹
LCM(75915,75920) = 1152693360