What is the Least Common Multiple of 2781 and 2787?

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 2781 and 2787 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2781 and 2787, than apply into the LCM equation.

GCF(2781,2787) = 3
LCM(2781,2787) = ( 2781 × 2787) / 3
LCM(2781,2787) = 7750647 / 3
LCM(2781,2787) = 2583549

Least Common Multiple (LCM) of 2781 and 2787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2781 and 2787. First we will calculate the prime factors of 2781 and 2787.

Prime Factorization of 2781

Prime Factorization of 2787

Now multiplying the highest exponent prime factors to calculate the LCM of 2781 and 2787.

LCM(2781,2787) = 3³ × 103¹ × 929¹
LCM(2781,2787) = 2583549