What is the Least Common Multiple of 78287 and 78291?

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 78287 and 78291 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78287 and 78291, than apply into the LCM equation.

GCF(78287,78291) = 1
LCM(78287,78291) = ( 78287 × 78291) / 1
LCM(78287,78291) = 6129167517 / 1
LCM(78287,78291) = 6129167517

Least Common Multiple (LCM) of 78287 and 78291 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78287 and 78291. First we will calculate the prime factors of 78287 and 78291.

Prime Factorization of 78287

Prime Factorization of 78291

Now multiplying the highest exponent prime factors to calculate the LCM of 78287 and 78291.

LCM(78287,78291) = 11² × 647¹ × 3² × 8699¹
LCM(78287,78291) = 6129167517