What is the Least Common Multiple of 31289 and 31305?

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 31289 and 31305 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31289 and 31305, than apply into the LCM equation.

GCF(31289,31305) = 1
LCM(31289,31305) = ( 31289 × 31305) / 1
LCM(31289,31305) = 979502145 / 1
LCM(31289,31305) = 979502145

Least Common Multiple (LCM) of 31289 and 31305 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31289 and 31305. First we will calculate the prime factors of 31289 and 31305.

Prime Factorization of 31289

Prime Factorization of 31305

Now multiplying the highest exponent prime factors to calculate the LCM of 31289 and 31305.

LCM(31289,31305) = 67¹ × 467¹ × 3¹ × 5¹ × 2087¹
LCM(31289,31305) = 979502145