What is the Least Common Multiple of 70821 and 70828?

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 70821 and 70828 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70821 and 70828, than apply into the LCM equation.

GCF(70821,70828) = 1
LCM(70821,70828) = ( 70821 × 70828) / 1
LCM(70821,70828) = 5016109788 / 1
LCM(70821,70828) = 5016109788

Least Common Multiple (LCM) of 70821 and 70828 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70821 and 70828. First we will calculate the prime factors of 70821 and 70828.

Prime Factorization of 70821

Prime Factorization of 70828

Now multiplying the highest exponent prime factors to calculate the LCM of 70821 and 70828.

LCM(70821,70828) = 3³ × 43¹ × 61¹ × 2² × 17707¹
LCM(70821,70828) = 5016109788