What is the Least Common Multiple of 78545 and 78555?

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 78545 and 78555 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78545 and 78555, than apply into the LCM equation.

GCF(78545,78555) = 5
LCM(78545,78555) = ( 78545 × 78555) / 5
LCM(78545,78555) = 6170102475 / 5
LCM(78545,78555) = 1234020495

Least Common Multiple (LCM) of 78545 and 78555 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78545 and 78555. First we will calculate the prime factors of 78545 and 78555.

Prime Factorization of 78545

Prime Factorization of 78555

Now multiplying the highest exponent prime factors to calculate the LCM of 78545 and 78555.

LCM(78545,78555) = 5¹ × 23¹ × 683¹ × 3¹ × 5237¹
LCM(78545,78555) = 1234020495