What is the Least Common Multiple of 65807 and 65821?

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 65807 and 65821 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65807 and 65821, than apply into the LCM equation.

GCF(65807,65821) = 7
LCM(65807,65821) = ( 65807 × 65821) / 7
LCM(65807,65821) = 4331482547 / 7
LCM(65807,65821) = 618783221

Least Common Multiple (LCM) of 65807 and 65821 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65807 and 65821. First we will calculate the prime factors of 65807 and 65821.

Prime Factorization of 65807

Prime Factorization of 65821

Now multiplying the highest exponent prime factors to calculate the LCM of 65807 and 65821.

LCM(65807,65821) = 7² × 17¹ × 79¹ × 9403¹
LCM(65807,65821) = 618783221