What is the Least Common Multiple of 30770 and 30781?

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 30770 and 30781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30770 and 30781, than apply into the LCM equation.

GCF(30770,30781) = 1
LCM(30770,30781) = ( 30770 × 30781) / 1
LCM(30770,30781) = 947131370 / 1
LCM(30770,30781) = 947131370

Least Common Multiple (LCM) of 30770 and 30781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30770 and 30781. First we will calculate the prime factors of 30770 and 30781.

Prime Factorization of 30770

Prime Factorization of 30781

Now multiplying the highest exponent prime factors to calculate the LCM of 30770 and 30781.

LCM(30770,30781) = 2¹ × 5¹ × 17¹ × 181¹ × 30781¹
LCM(30770,30781) = 947131370