What is the Least Common Multiple of 84121 and 84139?

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 84121 and 84139 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 84121 and 84139, than apply into the LCM equation.

GCF(84121,84139) = 1
LCM(84121,84139) = ( 84121 × 84139) / 1
LCM(84121,84139) = 7077856819 / 1
LCM(84121,84139) = 7077856819

Least Common Multiple (LCM) of 84121 and 84139 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 84121 and 84139. First we will calculate the prime factors of 84121 and 84139.

Prime Factorization of 84121

Prime Factorization of 84139

Now multiplying the highest exponent prime factors to calculate the LCM of 84121 and 84139.

LCM(84121,84139) = 84121¹ × 11¹ × 7649¹
LCM(84121,84139) = 7077856819