What is the Least Common Multiple of 28240 and 28255?

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 28240 and 28255 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28240 and 28255, than apply into the LCM equation.

GCF(28240,28255) = 5
LCM(28240,28255) = ( 28240 × 28255) / 5
LCM(28240,28255) = 797921200 / 5
LCM(28240,28255) = 159584240

Least Common Multiple (LCM) of 28240 and 28255 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28240 and 28255. First we will calculate the prime factors of 28240 and 28255.

Prime Factorization of 28240

Prime Factorization of 28255

Now multiplying the highest exponent prime factors to calculate the LCM of 28240 and 28255.

LCM(28240,28255) = 2⁴ × 5¹ × 353¹ × 5651¹
LCM(28240,28255) = 159584240