What is the Least Common Multiple of 39774 and 39781?

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 39774 and 39781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39774 and 39781, than apply into the LCM equation.

GCF(39774,39781) = 7
LCM(39774,39781) = ( 39774 × 39781) / 7
LCM(39774,39781) = 1582249494 / 7
LCM(39774,39781) = 226035642

Least Common Multiple (LCM) of 39774 and 39781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39774 and 39781. First we will calculate the prime factors of 39774 and 39781.

Prime Factorization of 39774

Prime Factorization of 39781

Now multiplying the highest exponent prime factors to calculate the LCM of 39774 and 39781.

LCM(39774,39781) = 2¹ × 3¹ × 7¹ × 947¹ × 5683¹
LCM(39774,39781) = 226035642