What is the Least Common Multiple of 28045 and 28055?

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 28045 and 28055 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28045 and 28055, than apply into the LCM equation.

GCF(28045,28055) = 5
LCM(28045,28055) = ( 28045 × 28055) / 5
LCM(28045,28055) = 786802475 / 5
LCM(28045,28055) = 157360495

Least Common Multiple (LCM) of 28045 and 28055 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28045 and 28055. First we will calculate the prime factors of 28045 and 28055.

Prime Factorization of 28045

Prime Factorization of 28055

Now multiplying the highest exponent prime factors to calculate the LCM of 28045 and 28055.

LCM(28045,28055) = 5¹ × 71¹ × 79¹ × 31¹ × 181¹
LCM(28045,28055) = 157360495