What is the Least Common Multiple of 9878 and 9890?

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 9878 and 9890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9878 and 9890, than apply into the LCM equation.

GCF(9878,9890) = 2
LCM(9878,9890) = ( 9878 × 9890) / 2
LCM(9878,9890) = 97693420 / 2
LCM(9878,9890) = 48846710

Least Common Multiple (LCM) of 9878 and 9890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9878 and 9890. First we will calculate the prime factors of 9878 and 9890.

Prime Factorization of 9878

Prime Factorization of 9890

Now multiplying the highest exponent prime factors to calculate the LCM of 9878 and 9890.

LCM(9878,9890) = 2¹ × 11¹ × 449¹ × 5¹ × 23¹ × 43¹
LCM(9878,9890) = 48846710