What is the Least Common Multiple of 91920 and 91928?

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 91920 and 91928 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91920 and 91928, than apply into the LCM equation.

GCF(91920,91928) = 8
LCM(91920,91928) = ( 91920 × 91928) / 8
LCM(91920,91928) = 8450021760 / 8
LCM(91920,91928) = 1056252720

Least Common Multiple (LCM) of 91920 and 91928 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91920 and 91928. First we will calculate the prime factors of 91920 and 91928.

Prime Factorization of 91920

Prime Factorization of 91928

Now multiplying the highest exponent prime factors to calculate the LCM of 91920 and 91928.

LCM(91920,91928) = 2⁴ × 3¹ × 5¹ × 383¹ × 11491¹
LCM(91920,91928) = 1056252720