What is the Least Common Multiple of 30781 and 30798?

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 30798 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 30798, than apply into the LCM equation.

GCF(30781,30798) = 1
LCM(30781,30798) = ( 30781 × 30798) / 1
LCM(30781,30798) = 947993238 / 1
LCM(30781,30798) = 947993238

Least Common Multiple (LCM) of 30781 and 30798 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30781 and 30798. First we will calculate the prime factors of 30781 and 30798.

Prime Factorization of 30781

Prime Factorization of 30798

Now multiplying the highest exponent prime factors to calculate the LCM of 30781 and 30798.

LCM(30781,30798) = 30781¹ × 2¹ × 3² × 29¹ × 59¹
LCM(30781,30798) = 947993238