What is the Least Common Multiple of 28028 and 28039?

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 28028 and 28039 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28028 and 28039, than apply into the LCM equation.

GCF(28028,28039) = 11
LCM(28028,28039) = ( 28028 × 28039) / 11
LCM(28028,28039) = 785877092 / 11
LCM(28028,28039) = 71443372

Least Common Multiple (LCM) of 28028 and 28039 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28028 and 28039. First we will calculate the prime factors of 28028 and 28039.

Prime Factorization of 28028

Prime Factorization of 28039

Now multiplying the highest exponent prime factors to calculate the LCM of 28028 and 28039.

LCM(28028,28039) = 2² × 7² × 11¹ × 13¹ × 2549¹
LCM(28028,28039) = 71443372