Like integers, positive integers are a countable infinite set. In number theory, positive integers are 1, 2, 3 ...; but in set theory and computer science, natural numbers usually refer to non-negative integers, that is, the set of positive integers and 0. It can also be said to be other than 0 The natural number of is a positive integer. Positive integers can be divided into prime numbers, 1 and composite numbers. Positive integers can be positive (+) or not.
Positive integer, an integer greater than 0, also
We divide the integers into three categories with 0 as the limit:
1. A positive integer, that is, an integer greater than 0, such as 1, 2, 3 ...
2. 0 is neither a positive integer nor
We know that one way to classify positive integers is to
use
About Hexagon Number Part of Positive Integer
For any positive number n, let b (n) be the largest hexagonal part of n, that is, b (n) = m (2m-1), if m (2m-1) n <(m + 1) (2m + 1), m N.
Combined representation of the k-th power of the first n positive integers
With several forms Find the expanded form of
