What is the Least Common Multiple of 3681 and 3689?

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 3681 and 3689 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3681 and 3689, than apply into the LCM equation.

GCF(3681,3689) = 1
LCM(3681,3689) = ( 3681 × 3689) / 1
LCM(3681,3689) = 13579209 / 1
LCM(3681,3689) = 13579209

Least Common Multiple (LCM) of 3681 and 3689 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3681 and 3689. First we will calculate the prime factors of 3681 and 3689.

Prime Factorization of 3681

Prime Factorization of 3689

Now multiplying the highest exponent prime factors to calculate the LCM of 3681 and 3689.

LCM(3681,3689) = 3² × 409¹ × 7¹ × 17¹ × 31¹
LCM(3681,3689) = 13579209