What is the Least Common Multiple of 30121 and 30140?

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 30121 and 30140 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30121 and 30140, than apply into the LCM equation.

GCF(30121,30140) = 1
LCM(30121,30140) = ( 30121 × 30140) / 1
LCM(30121,30140) = 907846940 / 1
LCM(30121,30140) = 907846940

Least Common Multiple (LCM) of 30121 and 30140 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30121 and 30140. First we will calculate the prime factors of 30121 and 30140.

Prime Factorization of 30121

Prime Factorization of 30140

Now multiplying the highest exponent prime factors to calculate the LCM of 30121 and 30140.

LCM(30121,30140) = 7¹ × 13¹ × 331¹ × 2² × 5¹ × 11¹ × 137¹
LCM(30121,30140) = 907846940