What is the Least Common Multiple of 70681 and 70689?

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 70681 and 70689 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70681 and 70689, than apply into the LCM equation.

GCF(70681,70689) = 1
LCM(70681,70689) = ( 70681 × 70689) / 1
LCM(70681,70689) = 4996369209 / 1
LCM(70681,70689) = 4996369209

Least Common Multiple (LCM) of 70681 and 70689 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70681 and 70689. First we will calculate the prime factors of 70681 and 70689.

Prime Factorization of 70681

Prime Factorization of 70689

Now multiplying the highest exponent prime factors to calculate the LCM of 70681 and 70689.

LCM(70681,70689) = 13¹ × 5437¹ × 3¹ × 23563¹
LCM(70681,70689) = 4996369209