What is the Least Common Multiple of 72807 and 72821?

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 72807 and 72821 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72807 and 72821, than apply into the LCM equation.

GCF(72807,72821) = 7
LCM(72807,72821) = ( 72807 × 72821) / 7
LCM(72807,72821) = 5301878547 / 7
LCM(72807,72821) = 757411221

Least Common Multiple (LCM) of 72807 and 72821 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72807 and 72821. First we will calculate the prime factors of 72807 and 72821.

Prime Factorization of 72807

Prime Factorization of 72821

Now multiplying the highest exponent prime factors to calculate the LCM of 72807 and 72821.

LCM(72807,72821) = 3¹ × 7¹ × 3467¹ × 101¹ × 103¹
LCM(72807,72821) = 757411221