What is the Least Common Multiple of 28270 and 28286?

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 28270 and 28286 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28270 and 28286, than apply into the LCM equation.

GCF(28270,28286) = 2
LCM(28270,28286) = ( 28270 × 28286) / 2
LCM(28270,28286) = 799645220 / 2
LCM(28270,28286) = 399822610

Least Common Multiple (LCM) of 28270 and 28286 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28270 and 28286. First we will calculate the prime factors of 28270 and 28286.

Prime Factorization of 28270

Prime Factorization of 28286

Now multiplying the highest exponent prime factors to calculate the LCM of 28270 and 28286.

LCM(28270,28286) = 2¹ × 5¹ × 11¹ × 257¹ × 14143¹
LCM(28270,28286) = 399822610