What is the Least Common Multiple of 91681 and 91691?

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 91681 and 91691 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91681 and 91691, than apply into the LCM equation.

GCF(91681,91691) = 1
LCM(91681,91691) = ( 91681 × 91691) / 1
LCM(91681,91691) = 8406322571 / 1
LCM(91681,91691) = 8406322571

Least Common Multiple (LCM) of 91681 and 91691 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91681 and 91691. First we will calculate the prime factors of 91681 and 91691.

Prime Factorization of 91681

Prime Factorization of 91691

Now multiplying the highest exponent prime factors to calculate the LCM of 91681 and 91691.

LCM(91681,91691) = 17¹ × 5393¹ × 91691¹
LCM(91681,91691) = 8406322571