What is the Least Common Multiple of 28743 and 28756?

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 28743 and 28756 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28743 and 28756, than apply into the LCM equation.

GCF(28743,28756) = 13
LCM(28743,28756) = ( 28743 × 28756) / 13
LCM(28743,28756) = 826533708 / 13
LCM(28743,28756) = 63579516

Least Common Multiple (LCM) of 28743 and 28756 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28743 and 28756. First we will calculate the prime factors of 28743 and 28756.

Prime Factorization of 28743

Prime Factorization of 28756

Now multiplying the highest exponent prime factors to calculate the LCM of 28743 and 28756.

LCM(28743,28756) = 3¹ × 11¹ × 13¹ × 67¹ × 2² × 7¹ × 79¹
LCM(28743,28756) = 63579516