What is the Least Common Multiple of 28040 and 28057?

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 28040 and 28057 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28040 and 28057, than apply into the LCM equation.

GCF(28040,28057) = 1
LCM(28040,28057) = ( 28040 × 28057) / 1
LCM(28040,28057) = 786718280 / 1
LCM(28040,28057) = 786718280

Least Common Multiple (LCM) of 28040 and 28057 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28040 and 28057. First we will calculate the prime factors of 28040 and 28057.

Prime Factorization of 28040

Prime Factorization of 28057

Now multiplying the highest exponent prime factors to calculate the LCM of 28040 and 28057.

LCM(28040,28057) = 2³ × 5¹ × 701¹ × 28057¹
LCM(28040,28057) = 786718280