What is the Least Common Multiple of 10103 and 10108?

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 10103 and 10108 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 10103 and 10108, than apply into the LCM equation.

GCF(10103,10108) = 1
LCM(10103,10108) = ( 10103 × 10108) / 1
LCM(10103,10108) = 102121124 / 1
LCM(10103,10108) = 102121124

Least Common Multiple (LCM) of 10103 and 10108 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 10103 and 10108. First we will calculate the prime factors of 10103 and 10108.

Prime Factorization of 10103

Prime Factorization of 10108

Now multiplying the highest exponent prime factors to calculate the LCM of 10103 and 10108.

LCM(10103,10108) = 10103¹ × 2² × 7¹ × 19²
LCM(10103,10108) = 102121124