What is the Least Common Multiple of 28769 and 28782?

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 28769 and 28782 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28769 and 28782, than apply into the LCM equation.

GCF(28769,28782) = 13
LCM(28769,28782) = ( 28769 × 28782) / 13
LCM(28769,28782) = 828029358 / 13
LCM(28769,28782) = 63694566

Least Common Multiple (LCM) of 28769 and 28782 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28769 and 28782. First we will calculate the prime factors of 28769 and 28782.

Prime Factorization of 28769

Prime Factorization of 28782

Now multiplying the highest exponent prime factors to calculate the LCM of 28769 and 28782.

LCM(28769,28782) = 13¹ × 2213¹ × 2¹ × 3³ × 41¹
LCM(28769,28782) = 63694566