What is the Least Common Multiple of 79658 and 79678?

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 79658 and 79678 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79658 and 79678, than apply into the LCM equation.

GCF(79658,79678) = 2
LCM(79658,79678) = ( 79658 × 79678) / 2
LCM(79658,79678) = 6346990124 / 2
LCM(79658,79678) = 3173495062

Least Common Multiple (LCM) of 79658 and 79678 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79658 and 79678. First we will calculate the prime factors of 79658 and 79678.

Prime Factorization of 79658

Prime Factorization of 79678

Now multiplying the highest exponent prime factors to calculate the LCM of 79658 and 79678.

LCM(79658,79678) = 2¹ × 39829¹ × 39839¹
LCM(79658,79678) = 3173495062