What is the Least Common Multiple of 71473 and 71491?

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 71473 and 71491 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71473 and 71491, than apply into the LCM equation.

GCF(71473,71491) = 1
LCM(71473,71491) = ( 71473 × 71491) / 1
LCM(71473,71491) = 5109676243 / 1
LCM(71473,71491) = 5109676243

Least Common Multiple (LCM) of 71473 and 71491 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71473 and 71491. First we will calculate the prime factors of 71473 and 71491.

Prime Factorization of 71473

Prime Factorization of 71491

Now multiplying the highest exponent prime factors to calculate the LCM of 71473 and 71491.

LCM(71473,71491) = 71473¹ × 7² × 1459¹
LCM(71473,71491) = 5109676243