What is the Least Common Multiple of 91280 and 91296?

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 91280 and 91296 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91280 and 91296, than apply into the LCM equation.

GCF(91280,91296) = 16
LCM(91280,91296) = ( 91280 × 91296) / 16
LCM(91280,91296) = 8333498880 / 16
LCM(91280,91296) = 520843680

Least Common Multiple (LCM) of 91280 and 91296 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91280 and 91296. First we will calculate the prime factors of 91280 and 91296.

Prime Factorization of 91280

Prime Factorization of 91296

Now multiplying the highest exponent prime factors to calculate the LCM of 91280 and 91296.

LCM(91280,91296) = 2⁵ × 5¹ × 7¹ × 163¹ × 3² × 317¹
LCM(91280,91296) = 520843680