What is the Least Common Multiple of 67785 and 67805?

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 67785 and 67805 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67785 and 67805, than apply into the LCM equation.

GCF(67785,67805) = 5
LCM(67785,67805) = ( 67785 × 67805) / 5
LCM(67785,67805) = 4596161925 / 5
LCM(67785,67805) = 919232385

Least Common Multiple (LCM) of 67785 and 67805 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67785 and 67805. First we will calculate the prime factors of 67785 and 67805.

Prime Factorization of 67785

Prime Factorization of 67805

Now multiplying the highest exponent prime factors to calculate the LCM of 67785 and 67805.

LCM(67785,67805) = 3¹ × 5¹ × 4519¹ × 71¹ × 191¹
LCM(67785,67805) = 919232385