What is the Least Common Multiple of 87717 and 87721?

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 87717 and 87721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87717 and 87721, than apply into the LCM equation.

GCF(87717,87721) = 1
LCM(87717,87721) = ( 87717 × 87721) / 1
LCM(87717,87721) = 7694622957 / 1
LCM(87717,87721) = 7694622957

Least Common Multiple (LCM) of 87717 and 87721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87717 and 87721. First we will calculate the prime factors of 87717 and 87721.

Prime Factorization of 87717

Prime Factorization of 87721

Now multiplying the highest exponent prime factors to calculate the LCM of 87717 and 87721.

LCM(87717,87721) = 3¹ × 7¹ × 4177¹ × 87721¹
LCM(87717,87721) = 7694622957