What is the Least Common Multiple of 83785 and 83790?

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 83785 and 83790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83785 and 83790, than apply into the LCM equation.

GCF(83785,83790) = 5
LCM(83785,83790) = ( 83785 × 83790) / 5
LCM(83785,83790) = 7020345150 / 5
LCM(83785,83790) = 1404069030

Least Common Multiple (LCM) of 83785 and 83790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83785 and 83790. First we will calculate the prime factors of 83785 and 83790.

Prime Factorization of 83785

Prime Factorization of 83790

Now multiplying the highest exponent prime factors to calculate the LCM of 83785 and 83790.

LCM(83785,83790) = 5¹ × 13¹ × 1289¹ × 2¹ × 3² × 7² × 19¹
LCM(83785,83790) = 1404069030