What is the Least Common Multiple of 20230 and 20245?

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 20230 and 20245 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20230 and 20245, than apply into the LCM equation.

GCF(20230,20245) = 5
LCM(20230,20245) = ( 20230 × 20245) / 5
LCM(20230,20245) = 409556350 / 5
LCM(20230,20245) = 81911270

Least Common Multiple (LCM) of 20230 and 20245 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20230 and 20245. First we will calculate the prime factors of 20230 and 20245.

Prime Factorization of 20230

Prime Factorization of 20245

Now multiplying the highest exponent prime factors to calculate the LCM of 20230 and 20245.

LCM(20230,20245) = 2¹ × 5¹ × 7¹ × 17² × 4049¹
LCM(20230,20245) = 81911270