What is the Least Common Multiple of 68645 and 68665?

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 68645 and 68665 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68645 and 68665, than apply into the LCM equation.

GCF(68645,68665) = 5
LCM(68645,68665) = ( 68645 × 68665) / 5
LCM(68645,68665) = 4713508925 / 5
LCM(68645,68665) = 942701785

Least Common Multiple (LCM) of 68645 and 68665 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68645 and 68665. First we will calculate the prime factors of 68645 and 68665.

Prime Factorization of 68645

Prime Factorization of 68665

Now multiplying the highest exponent prime factors to calculate the LCM of 68645 and 68665.

LCM(68645,68665) = 5¹ × 13729¹ × 31¹ × 443¹
LCM(68645,68665) = 942701785