What is the Least Common Multiple of 28781 and 28787?

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 28781 and 28787 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28781 and 28787, than apply into the LCM equation.

GCF(28781,28787) = 1
LCM(28781,28787) = ( 28781 × 28787) / 1
LCM(28781,28787) = 828518647 / 1
LCM(28781,28787) = 828518647

Least Common Multiple (LCM) of 28781 and 28787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28781 and 28787. First we will calculate the prime factors of 28781 and 28787.

Prime Factorization of 28781

Prime Factorization of 28787

Now multiplying the highest exponent prime factors to calculate the LCM of 28781 and 28787.

LCM(28781,28787) = 17¹ × 1693¹ × 11¹ × 2617¹
LCM(28781,28787) = 828518647