What is the Least Common Multiple of 78340 and 78355?

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 78340 and 78355 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78340 and 78355, than apply into the LCM equation.

GCF(78340,78355) = 5
LCM(78340,78355) = ( 78340 × 78355) / 5
LCM(78340,78355) = 6138330700 / 5
LCM(78340,78355) = 1227666140

Least Common Multiple (LCM) of 78340 and 78355 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78340 and 78355. First we will calculate the prime factors of 78340 and 78355.

Prime Factorization of 78340

Prime Factorization of 78355

Now multiplying the highest exponent prime factors to calculate the LCM of 78340 and 78355.

LCM(78340,78355) = 2² × 5¹ × 3917¹ × 15671¹
LCM(78340,78355) = 1227666140