What is the Least Common Multiple of 20345 and 20355?

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 20345 and 20355 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20345 and 20355, than apply into the LCM equation.

GCF(20345,20355) = 5
LCM(20345,20355) = ( 20345 × 20355) / 5
LCM(20345,20355) = 414122475 / 5
LCM(20345,20355) = 82824495

Least Common Multiple (LCM) of 20345 and 20355 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20345 and 20355. First we will calculate the prime factors of 20345 and 20355.

Prime Factorization of 20345

Prime Factorization of 20355

Now multiplying the highest exponent prime factors to calculate the LCM of 20345 and 20355.

LCM(20345,20355) = 5¹ × 13¹ × 313¹ × 3¹ × 23¹ × 59¹
LCM(20345,20355) = 82824495