What is the Least Common Multiple of 20897 and 20903?

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 20897 and 20903 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20897 and 20903, than apply into the LCM equation.

GCF(20897,20903) = 1
LCM(20897,20903) = ( 20897 × 20903) / 1
LCM(20897,20903) = 436809991 / 1
LCM(20897,20903) = 436809991

Least Common Multiple (LCM) of 20897 and 20903 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20897 and 20903. First we will calculate the prime factors of 20897 and 20903.

Prime Factorization of 20897

Prime Factorization of 20903

Now multiplying the highest exponent prime factors to calculate the LCM of 20897 and 20903.

LCM(20897,20903) = 20897¹ × 20903¹
LCM(20897,20903) = 436809991