What is the Least Common Multiple of 79800 and 79805?

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 79800 and 79805 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79800 and 79805, than apply into the LCM equation.

GCF(79800,79805) = 5
LCM(79800,79805) = ( 79800 × 79805) / 5
LCM(79800,79805) = 6368439000 / 5
LCM(79800,79805) = 1273687800

Least Common Multiple (LCM) of 79800 and 79805 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79800 and 79805. First we will calculate the prime factors of 79800 and 79805.

Prime Factorization of 79800

Prime Factorization of 79805

Now multiplying the highest exponent prime factors to calculate the LCM of 79800 and 79805.

LCM(79800,79805) = 2³ × 3¹ × 5² × 7¹ × 19¹ × 11¹ × 1451¹
LCM(79800,79805) = 1273687800