What is the Least Common Multiple of 72401 and 72407?

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 72401 and 72407 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72401 and 72407, than apply into the LCM equation.

GCF(72401,72407) = 1
LCM(72401,72407) = ( 72401 × 72407) / 1
LCM(72401,72407) = 5242339207 / 1
LCM(72401,72407) = 5242339207

Least Common Multiple (LCM) of 72401 and 72407 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72401 and 72407. First we will calculate the prime factors of 72401 and 72407.

Prime Factorization of 72401

Prime Factorization of 72407

Now multiplying the highest exponent prime factors to calculate the LCM of 72401 and 72407.

LCM(72401,72407) = 7¹ × 10343¹ × 61¹ × 1187¹
LCM(72401,72407) = 5242339207