What is the Least Common Multiple of 39643 and 39647?

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 39643 and 39647 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39643 and 39647, than apply into the LCM equation.

GCF(39643,39647) = 1
LCM(39643,39647) = ( 39643 × 39647) / 1
LCM(39643,39647) = 1571726021 / 1
LCM(39643,39647) = 1571726021

Least Common Multiple (LCM) of 39643 and 39647 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39643 and 39647. First we will calculate the prime factors of 39643 and 39647.

Prime Factorization of 39643

Prime Factorization of 39647

Now multiplying the highest exponent prime factors to calculate the LCM of 39643 and 39647.

LCM(39643,39647) = 29¹ × 1367¹ × 41¹ × 967¹
LCM(39643,39647) = 1571726021