What is the Least Common Multiple of 61281 and 61287?

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 61281 and 61287 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61281 and 61287, than apply into the LCM equation.

GCF(61281,61287) = 3
LCM(61281,61287) = ( 61281 × 61287) / 3
LCM(61281,61287) = 3755728647 / 3
LCM(61281,61287) = 1251909549

Least Common Multiple (LCM) of 61281 and 61287 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61281 and 61287. First we will calculate the prime factors of 61281 and 61287.

Prime Factorization of 61281

Prime Factorization of 61287

Now multiplying the highest exponent prime factors to calculate the LCM of 61281 and 61287.

LCM(61281,61287) = 3² × 11¹ × 619¹ × 31¹ × 659¹
LCM(61281,61287) = 1251909549