What is the Least Common Multiple of 21601 and 21607?

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 21601 and 21607 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21601 and 21607, than apply into the LCM equation.

GCF(21601,21607) = 1
LCM(21601,21607) = ( 21601 × 21607) / 1
LCM(21601,21607) = 466732807 / 1
LCM(21601,21607) = 466732807

Least Common Multiple (LCM) of 21601 and 21607 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21601 and 21607. First we will calculate the prime factors of 21601 and 21607.

Prime Factorization of 21601

Prime Factorization of 21607

Now multiplying the highest exponent prime factors to calculate the LCM of 21601 and 21607.

LCM(21601,21607) = 21601¹ × 17¹ × 31¹ × 41¹
LCM(21601,21607) = 466732807