What is the Least Common Multiple of 31555 and 31575?

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 31555 and 31575 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31555 and 31575, than apply into the LCM equation.

GCF(31555,31575) = 5
LCM(31555,31575) = ( 31555 × 31575) / 5
LCM(31555,31575) = 996349125 / 5
LCM(31555,31575) = 199269825

Least Common Multiple (LCM) of 31555 and 31575 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31555 and 31575. First we will calculate the prime factors of 31555 and 31575.

Prime Factorization of 31555

Prime Factorization of 31575

Now multiplying the highest exponent prime factors to calculate the LCM of 31555 and 31575.

LCM(31555,31575) = 5² × 6311¹ × 3¹ × 421¹
LCM(31555,31575) = 199269825