What is the Least Common Multiple of 77908 and 77928?

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 77908 and 77928 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77908 and 77928, than apply into the LCM equation.

GCF(77908,77928) = 4
LCM(77908,77928) = ( 77908 × 77928) / 4
LCM(77908,77928) = 6071214624 / 4
LCM(77908,77928) = 1517803656

Least Common Multiple (LCM) of 77908 and 77928 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77908 and 77928. First we will calculate the prime factors of 77908 and 77928.

Prime Factorization of 77908

Prime Factorization of 77928

Now multiplying the highest exponent prime factors to calculate the LCM of 77908 and 77928.

LCM(77908,77928) = 2³ × 19477¹ × 3¹ × 17¹ × 191¹
LCM(77908,77928) = 1517803656