What is the Least Common Multiple of 65531 and 65545?

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 65531 and 65545 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65531 and 65545, than apply into the LCM equation.

GCF(65531,65545) = 1
LCM(65531,65545) = ( 65531 × 65545) / 1
LCM(65531,65545) = 4295229395 / 1
LCM(65531,65545) = 4295229395

Least Common Multiple (LCM) of 65531 and 65545 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65531 and 65545. First we will calculate the prime factors of 65531 and 65545.

Prime Factorization of 65531

Prime Factorization of 65545

Now multiplying the highest exponent prime factors to calculate the LCM of 65531 and 65545.

LCM(65531,65545) = 19¹ × 3449¹ × 5¹ × 13109¹
LCM(65531,65545) = 4295229395