What is the Least Common Multiple of 3870 and 3887?

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 3870 and 3887 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3870 and 3887, than apply into the LCM equation.

GCF(3870,3887) = 1
LCM(3870,3887) = ( 3870 × 3887) / 1
LCM(3870,3887) = 15042690 / 1
LCM(3870,3887) = 15042690

Least Common Multiple (LCM) of 3870 and 3887 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3870 and 3887. First we will calculate the prime factors of 3870 and 3887.

Prime Factorization of 3870

Prime Factorization of 3887

Now multiplying the highest exponent prime factors to calculate the LCM of 3870 and 3887.

LCM(3870,3887) = 2¹ × 3² × 5¹ × 43¹ × 13² × 23¹
LCM(3870,3887) = 15042690