What is the Least Common Multiple of 30781 and 30787?

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 30781 and 30787 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30781 and 30787, than apply into the LCM equation.

GCF(30781,30787) = 1
LCM(30781,30787) = ( 30781 × 30787) / 1
LCM(30781,30787) = 947654647 / 1
LCM(30781,30787) = 947654647

Least Common Multiple (LCM) of 30781 and 30787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30781 and 30787. First we will calculate the prime factors of 30781 and 30787.

Prime Factorization of 30781

Prime Factorization of 30787

Now multiplying the highest exponent prime factors to calculate the LCM of 30781 and 30787.

LCM(30781,30787) = 30781¹ × 17¹ × 1811¹
LCM(30781,30787) = 947654647