What is the Least Common Multiple of 65513 and 65521?

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 65513 and 65521 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65513 and 65521, than apply into the LCM equation.

GCF(65513,65521) = 1
LCM(65513,65521) = ( 65513 × 65521) / 1
LCM(65513,65521) = 4292477273 / 1
LCM(65513,65521) = 4292477273

Least Common Multiple (LCM) of 65513 and 65521 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65513 and 65521. First we will calculate the prime factors of 65513 and 65521.

Prime Factorization of 65513

Prime Factorization of 65521

Now multiplying the highest exponent prime factors to calculate the LCM of 65513 and 65521.

LCM(65513,65521) = 7³ × 191¹ × 65521¹
LCM(65513,65521) = 4292477273