What is the Least Common Multiple of 28656 and 28662?

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 28656 and 28662 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28656 and 28662, than apply into the LCM equation.

GCF(28656,28662) = 6
LCM(28656,28662) = ( 28656 × 28662) / 6
LCM(28656,28662) = 821338272 / 6
LCM(28656,28662) = 136889712

Least Common Multiple (LCM) of 28656 and 28662 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28656 and 28662. First we will calculate the prime factors of 28656 and 28662.

Prime Factorization of 28656

Prime Factorization of 28662

Now multiplying the highest exponent prime factors to calculate the LCM of 28656 and 28662.

LCM(28656,28662) = 2⁴ × 3² × 199¹ × 17¹ × 281¹
LCM(28656,28662) = 136889712