What is the Least Common Multiple of 11128 and 11140?

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 11128 and 11140 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11128 and 11140, than apply into the LCM equation.

GCF(11128,11140) = 4
LCM(11128,11140) = ( 11128 × 11140) / 4
LCM(11128,11140) = 123965920 / 4
LCM(11128,11140) = 30991480

Least Common Multiple (LCM) of 11128 and 11140 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11128 and 11140. First we will calculate the prime factors of 11128 and 11140.

Prime Factorization of 11128

Prime Factorization of 11140

Now multiplying the highest exponent prime factors to calculate the LCM of 11128 and 11140.

LCM(11128,11140) = 2³ × 13¹ × 107¹ × 5¹ × 557¹
LCM(11128,11140) = 30991480