What is the Least Common Multiple of 9770 and 9781?

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 9770 and 9781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9770 and 9781, than apply into the LCM equation.

GCF(9770,9781) = 1
LCM(9770,9781) = ( 9770 × 9781) / 1
LCM(9770,9781) = 95560370 / 1
LCM(9770,9781) = 95560370

Least Common Multiple (LCM) of 9770 and 9781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9770 and 9781. First we will calculate the prime factors of 9770 and 9781.

Prime Factorization of 9770

Prime Factorization of 9781

Now multiplying the highest exponent prime factors to calculate the LCM of 9770 and 9781.

LCM(9770,9781) = 2¹ × 5¹ × 977¹ × 9781¹
LCM(9770,9781) = 95560370