What is the Least Common Multiple of 78701 and 78721?

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 78701 and 78721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78701 and 78721, than apply into the LCM equation.

GCF(78701,78721) = 1
LCM(78701,78721) = ( 78701 × 78721) / 1
LCM(78701,78721) = 6195421421 / 1
LCM(78701,78721) = 6195421421

Least Common Multiple (LCM) of 78701 and 78721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78701 and 78721. First we will calculate the prime factors of 78701 and 78721.

Prime Factorization of 78701

Prime Factorization of 78721

Now multiplying the highest exponent prime factors to calculate the LCM of 78701 and 78721.

LCM(78701,78721) = 7¹ × 11243¹ × 78721¹
LCM(78701,78721) = 6195421421