What is the Least Common Multiple of 78530 and 78545?

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 78530 and 78545 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78530 and 78545, than apply into the LCM equation.

GCF(78530,78545) = 5
LCM(78530,78545) = ( 78530 × 78545) / 5
LCM(78530,78545) = 6168138850 / 5
LCM(78530,78545) = 1233627770

Least Common Multiple (LCM) of 78530 and 78545 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78530 and 78545. First we will calculate the prime factors of 78530 and 78545.

Prime Factorization of 78530

Prime Factorization of 78545

Now multiplying the highest exponent prime factors to calculate the LCM of 78530 and 78545.

LCM(78530,78545) = 2¹ × 5¹ × 7853¹ × 23¹ × 683¹
LCM(78530,78545) = 1233627770