What is the Least Common Multiple of 84128 and 84145?

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 84128 and 84145 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84128 and 84145, than apply into the LCM equation.

GCF(84128,84145) = 1
LCM(84128,84145) = ( 84128 × 84145) / 1
LCM(84128,84145) = 7078950560 / 1
LCM(84128,84145) = 7078950560

Least Common Multiple (LCM) of 84128 and 84145 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84128 and 84145. First we will calculate the prime factors of 84128 and 84145.

Prime Factorization of 84128

Prime Factorization of 84145

Now multiplying the highest exponent prime factors to calculate the LCM of 84128 and 84145.

LCM(84128,84145) = 2⁵ × 11¹ × 239¹ × 5¹ × 16829¹
LCM(84128,84145) = 7078950560