What is the Least Common Multiple of 15855 and 15868?

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 15855 and 15868 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15855 and 15868, than apply into the LCM equation.

GCF(15855,15868) = 1
LCM(15855,15868) = ( 15855 × 15868) / 1
LCM(15855,15868) = 251587140 / 1
LCM(15855,15868) = 251587140

Least Common Multiple (LCM) of 15855 and 15868 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15855 and 15868. First we will calculate the prime factors of 15855 and 15868.

Prime Factorization of 15855

Prime Factorization of 15868

Now multiplying the highest exponent prime factors to calculate the LCM of 15855 and 15868.

LCM(15855,15868) = 3¹ × 5¹ × 7¹ × 151¹ × 2² × 3967¹
LCM(15855,15868) = 251587140