What is the Least Common Multiple of 9890 and 9901?

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 9890 and 9901 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9890 and 9901, than apply into the LCM equation.

GCF(9890,9901) = 1
LCM(9890,9901) = ( 9890 × 9901) / 1
LCM(9890,9901) = 97920890 / 1
LCM(9890,9901) = 97920890

Least Common Multiple (LCM) of 9890 and 9901 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9890 and 9901. First we will calculate the prime factors of 9890 and 9901.

Prime Factorization of 9890

Prime Factorization of 9901

Now multiplying the highest exponent prime factors to calculate the LCM of 9890 and 9901.

LCM(9890,9901) = 2¹ × 5¹ × 23¹ × 43¹ × 9901¹
LCM(9890,9901) = 97920890