What is the Least Common Multiple of 28055 and 28070?

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 28055 and 28070 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28055 and 28070, than apply into the LCM equation.

GCF(28055,28070) = 5
LCM(28055,28070) = ( 28055 × 28070) / 5
LCM(28055,28070) = 787503850 / 5
LCM(28055,28070) = 157500770

Least Common Multiple (LCM) of 28055 and 28070 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28055 and 28070. First we will calculate the prime factors of 28055 and 28070.

Prime Factorization of 28055

Prime Factorization of 28070

Now multiplying the highest exponent prime factors to calculate the LCM of 28055 and 28070.

LCM(28055,28070) = 5¹ × 31¹ × 181¹ × 2¹ × 7¹ × 401¹
LCM(28055,28070) = 157500770