What is the Least Common Multiple of 28210 and 28216?

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 28210 and 28216 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28210 and 28216, than apply into the LCM equation.

GCF(28210,28216) = 2
LCM(28210,28216) = ( 28210 × 28216) / 2
LCM(28210,28216) = 795973360 / 2
LCM(28210,28216) = 397986680

Least Common Multiple (LCM) of 28210 and 28216 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28210 and 28216. First we will calculate the prime factors of 28210 and 28216.

Prime Factorization of 28210

Prime Factorization of 28216

Now multiplying the highest exponent prime factors to calculate the LCM of 28210 and 28216.

LCM(28210,28216) = 2³ × 5¹ × 7¹ × 13¹ × 31¹ × 3527¹
LCM(28210,28216) = 397986680