What is the Least Common Multiple of 28770 and 28781?

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 28770 and 28781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28770 and 28781, than apply into the LCM equation.

GCF(28770,28781) = 1
LCM(28770,28781) = ( 28770 × 28781) / 1
LCM(28770,28781) = 828029370 / 1
LCM(28770,28781) = 828029370

Least Common Multiple (LCM) of 28770 and 28781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28770 and 28781. First we will calculate the prime factors of 28770 and 28781.

Prime Factorization of 28770

Prime Factorization of 28781

Now multiplying the highest exponent prime factors to calculate the LCM of 28770 and 28781.

LCM(28770,28781) = 2¹ × 3¹ × 5¹ × 7¹ × 137¹ × 17¹ × 1693¹
LCM(28770,28781) = 828029370