What is the Least Common Multiple of 65406 and 65413?

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 65406 and 65413 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65406 and 65413, than apply into the LCM equation.

GCF(65406,65413) = 1
LCM(65406,65413) = ( 65406 × 65413) / 1
LCM(65406,65413) = 4278402678 / 1
LCM(65406,65413) = 4278402678

Least Common Multiple (LCM) of 65406 and 65413 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65406 and 65413. First we will calculate the prime factors of 65406 and 65413.

Prime Factorization of 65406

Prime Factorization of 65413

Now multiplying the highest exponent prime factors to calculate the LCM of 65406 and 65413.

LCM(65406,65413) = 2¹ × 3¹ × 11¹ × 991¹ × 65413¹
LCM(65406,65413) = 4278402678