What is the Least Common Multiple of 91707 and 91721?

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 91707 and 91721 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91707 and 91721, than apply into the LCM equation.

GCF(91707,91721) = 7
LCM(91707,91721) = ( 91707 × 91721) / 7
LCM(91707,91721) = 8411457747 / 7
LCM(91707,91721) = 1201636821

Least Common Multiple (LCM) of 91707 and 91721 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91707 and 91721. First we will calculate the prime factors of 91707 and 91721.

Prime Factorization of 91707

Prime Factorization of 91721

Now multiplying the highest exponent prime factors to calculate the LCM of 91707 and 91721.

LCM(91707,91721) = 3¹ × 7¹ × 11¹ × 397¹ × 13103¹
LCM(91707,91721) = 1201636821