What is the Least Common Multiple of 86781 and 86785?

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 86781 and 86785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86781 and 86785, than apply into the LCM equation.

GCF(86781,86785) = 1
LCM(86781,86785) = ( 86781 × 86785) / 1
LCM(86781,86785) = 7531289085 / 1
LCM(86781,86785) = 7531289085

Least Common Multiple (LCM) of 86781 and 86785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86781 and 86785. First we will calculate the prime factors of 86781 and 86785.

Prime Factorization of 86781

Prime Factorization of 86785

Now multiplying the highest exponent prime factors to calculate the LCM of 86781 and 86785.

LCM(86781,86785) = 3¹ × 28927¹ × 5¹ × 17¹ × 1021¹
LCM(86781,86785) = 7531289085