What is the Least Common Multiple of 91661 and 91681?

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 91661 and 91681 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91661 and 91681, than apply into the LCM equation.

GCF(91661,91681) = 1
LCM(91661,91681) = ( 91661 × 91681) / 1
LCM(91661,91681) = 8403572141 / 1
LCM(91661,91681) = 8403572141

Least Common Multiple (LCM) of 91661 and 91681 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91661 and 91681. First we will calculate the prime factors of 91661 and 91681.

Prime Factorization of 91661

Prime Factorization of 91681

Now multiplying the highest exponent prime factors to calculate the LCM of 91661 and 91681.

LCM(91661,91681) = 71¹ × 1291¹ × 17¹ × 5393¹
LCM(91661,91681) = 8403572141