What is the Least Common Multiple of 78617 and 78631?

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 78617 and 78631 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78617 and 78631, than apply into the LCM equation.

GCF(78617,78631) = 7
LCM(78617,78631) = ( 78617 × 78631) / 7
LCM(78617,78631) = 6181733327 / 7
LCM(78617,78631) = 883104761

Least Common Multiple (LCM) of 78617 and 78631 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78617 and 78631. First we will calculate the prime factors of 78617 and 78631.

Prime Factorization of 78617

Prime Factorization of 78631

Now multiplying the highest exponent prime factors to calculate the LCM of 78617 and 78631.

LCM(78617,78631) = 7¹ × 11¹ × 1021¹ × 47¹ × 239¹
LCM(78617,78631) = 883104761