What is the Least Common Multiple of 86431 and 86439?

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 86431 and 86439 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86431 and 86439, than apply into the LCM equation.

GCF(86431,86439) = 1
LCM(86431,86439) = ( 86431 × 86439) / 1
LCM(86431,86439) = 7471009209 / 1
LCM(86431,86439) = 7471009209

Least Common Multiple (LCM) of 86431 and 86439 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86431 and 86439. First we will calculate the prime factors of 86431 and 86439.

Prime Factorization of 86431

Prime Factorization of 86439

Now multiplying the highest exponent prime factors to calculate the LCM of 86431 and 86439.

LCM(86431,86439) = 19¹ × 4549¹ × 3¹ × 28813¹
LCM(86431,86439) = 7471009209