What is the Least Common Multiple of 89981 and 89991?

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 89981 and 89991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89981 and 89991, than apply into the LCM equation.

GCF(89981,89991) = 1
LCM(89981,89991) = ( 89981 × 89991) / 1
LCM(89981,89991) = 8097480171 / 1
LCM(89981,89991) = 8097480171

Least Common Multiple (LCM) of 89981 and 89991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 89981 and 89991. First we will calculate the prime factors of 89981 and 89991.

Prime Factorization of 89981

Prime Factorization of 89991

Now multiplying the highest exponent prime factors to calculate the LCM of 89981 and 89991.

LCM(89981,89991) = 17¹ × 67¹ × 79¹ × 3⁴ × 11¹ × 101¹
LCM(89981,89991) = 8097480171