What is the Least Common Multiple of 3678 and 3690?

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 3678 and 3690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3678 and 3690, than apply into the LCM equation.

GCF(3678,3690) = 6
LCM(3678,3690) = ( 3678 × 3690) / 6
LCM(3678,3690) = 13571820 / 6
LCM(3678,3690) = 2261970

Least Common Multiple (LCM) of 3678 and 3690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3678 and 3690. First we will calculate the prime factors of 3678 and 3690.

Prime Factorization of 3678

Prime Factorization of 3690

Now multiplying the highest exponent prime factors to calculate the LCM of 3678 and 3690.

LCM(3678,3690) = 2¹ × 3² × 613¹ × 5¹ × 41¹
LCM(3678,3690) = 2261970