What is the Least Common Multiple of 28145 and 28160?

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 28145 and 28160 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28145 and 28160, than apply into the LCM equation.

GCF(28145,28160) = 5
LCM(28145,28160) = ( 28145 × 28160) / 5
LCM(28145,28160) = 792563200 / 5
LCM(28145,28160) = 158512640

Least Common Multiple (LCM) of 28145 and 28160 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28145 and 28160. First we will calculate the prime factors of 28145 and 28160.

Prime Factorization of 28145

Prime Factorization of 28160

Now multiplying the highest exponent prime factors to calculate the LCM of 28145 and 28160.

LCM(28145,28160) = 5¹ × 13¹ × 433¹ × 2⁹ × 11¹
LCM(28145,28160) = 158512640