What is the Least Common Multiple of 28636 and 28643?

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 28636 and 28643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28636 and 28643, than apply into the LCM equation.

GCF(28636,28643) = 1
LCM(28636,28643) = ( 28636 × 28643) / 1
LCM(28636,28643) = 820220948 / 1
LCM(28636,28643) = 820220948

Least Common Multiple (LCM) of 28636 and 28643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28636 and 28643. First we will calculate the prime factors of 28636 and 28643.

Prime Factorization of 28636

Prime Factorization of 28643

Now multiplying the highest exponent prime factors to calculate the LCM of 28636 and 28643.

LCM(28636,28643) = 2² × 7159¹ × 28643¹
LCM(28636,28643) = 820220948