What is the Least Common Multiple of 28972 and 28985?

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 28972 and 28985 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28972 and 28985, than apply into the LCM equation.

GCF(28972,28985) = 1
LCM(28972,28985) = ( 28972 × 28985) / 1
LCM(28972,28985) = 839753420 / 1
LCM(28972,28985) = 839753420

Least Common Multiple (LCM) of 28972 and 28985 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28972 and 28985. First we will calculate the prime factors of 28972 and 28985.

Prime Factorization of 28972

Prime Factorization of 28985

Now multiplying the highest exponent prime factors to calculate the LCM of 28972 and 28985.

LCM(28972,28985) = 2² × 7243¹ × 5¹ × 11¹ × 17¹ × 31¹
LCM(28972,28985) = 839753420