What is the Least Common Multiple of 30121 and 30139?

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 30139 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 30139, than apply into the LCM equation.

GCF(30121,30139) = 1
LCM(30121,30139) = ( 30121 × 30139) / 1
LCM(30121,30139) = 907816819 / 1
LCM(30121,30139) = 907816819

Least Common Multiple (LCM) of 30121 and 30139 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30121 and 30139. First we will calculate the prime factors of 30121 and 30139.

Prime Factorization of 30121

Prime Factorization of 30139

Now multiplying the highest exponent prime factors to calculate the LCM of 30121 and 30139.

LCM(30121,30139) = 7¹ × 13¹ × 331¹ × 30139¹
LCM(30121,30139) = 907816819