What is the Least Common Multiple of 21085 and 21097?

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 21085 and 21097 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21085 and 21097, than apply into the LCM equation.

GCF(21085,21097) = 1
LCM(21085,21097) = ( 21085 × 21097) / 1
LCM(21085,21097) = 444830245 / 1
LCM(21085,21097) = 444830245

Least Common Multiple (LCM) of 21085 and 21097 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21085 and 21097. First we will calculate the prime factors of 21085 and 21097.

Prime Factorization of 21085

Prime Factorization of 21097

Now multiplying the highest exponent prime factors to calculate the LCM of 21085 and 21097.

LCM(21085,21097) = 5¹ × 4217¹ × 17² × 73¹
LCM(21085,21097) = 444830245