What is the Least Common Multiple of 78785 and 78805?

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 78785 and 78805 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78785 and 78805, than apply into the LCM equation.

GCF(78785,78805) = 5
LCM(78785,78805) = ( 78785 × 78805) / 5
LCM(78785,78805) = 6208651925 / 5
LCM(78785,78805) = 1241730385

Least Common Multiple (LCM) of 78785 and 78805 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78785 and 78805. First we will calculate the prime factors of 78785 and 78805.

Prime Factorization of 78785

Prime Factorization of 78805

Now multiplying the highest exponent prime factors to calculate the LCM of 78785 and 78805.

LCM(78785,78805) = 5¹ × 7¹ × 2251¹ × 15761¹
LCM(78785,78805) = 1241730385