What is the Least Common Multiple of 40678 and 40687?

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 40678 and 40687 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40678 and 40687, than apply into the LCM equation.

GCF(40678,40687) = 1
LCM(40678,40687) = ( 40678 × 40687) / 1
LCM(40678,40687) = 1655065786 / 1
LCM(40678,40687) = 1655065786

Least Common Multiple (LCM) of 40678 and 40687 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40678 and 40687. First we will calculate the prime factors of 40678 and 40687.

Prime Factorization of 40678

Prime Factorization of 40687

Now multiplying the highest exponent prime factors to calculate the LCM of 40678 and 40687.

LCM(40678,40687) = 2¹ × 11¹ × 43² × 23¹ × 29¹ × 61¹
LCM(40678,40687) = 1655065786