What is the Least Common Multiple of 23981 and 23989?

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 23981 and 23989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23981 and 23989, than apply into the LCM equation.

GCF(23981,23989) = 1
LCM(23981,23989) = ( 23981 × 23989) / 1
LCM(23981,23989) = 575280209 / 1
LCM(23981,23989) = 575280209

Least Common Multiple (LCM) of 23981 and 23989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23981 and 23989. First we will calculate the prime factors of 23981 and 23989.

Prime Factorization of 23981

Prime Factorization of 23989

Now multiplying the highest exponent prime factors to calculate the LCM of 23981 and 23989.

LCM(23981,23989) = 23981¹ × 7¹ × 23¹ × 149¹
LCM(23981,23989) = 575280209