What is the Least Common Multiple of 9781 and 9788?

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 9781 and 9788 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9781 and 9788, than apply into the LCM equation.

GCF(9781,9788) = 1
LCM(9781,9788) = ( 9781 × 9788) / 1
LCM(9781,9788) = 95736428 / 1
LCM(9781,9788) = 95736428

Least Common Multiple (LCM) of 9781 and 9788 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9781 and 9788. First we will calculate the prime factors of 9781 and 9788.

Prime Factorization of 9781

Prime Factorization of 9788

Now multiplying the highest exponent prime factors to calculate the LCM of 9781 and 9788.

LCM(9781,9788) = 9781¹ × 2² × 2447¹
LCM(9781,9788) = 95736428