What is the Least Common Multiple of 78225 and 78245?

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 78225 and 78245 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78225 and 78245, than apply into the LCM equation.

GCF(78225,78245) = 5
LCM(78225,78245) = ( 78225 × 78245) / 5
LCM(78225,78245) = 6120715125 / 5
LCM(78225,78245) = 1224143025

Least Common Multiple (LCM) of 78225 and 78245 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78225 and 78245. First we will calculate the prime factors of 78225 and 78245.

Prime Factorization of 78225

Prime Factorization of 78245

Now multiplying the highest exponent prime factors to calculate the LCM of 78225 and 78245.

LCM(78225,78245) = 3¹ × 5² × 7¹ × 149¹ × 15649¹
LCM(78225,78245) = 1224143025