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Definition: integer from Philip's Encyclopedia

Any negative or positive whole number or zero, E.g. ... -3, -2, -1, 0, 1, 2, 3 ... There are a limitless (infinite) number of integers. The positive integers are the natural numbers. The existence of negative integers and zero allow any integer to be subtracted from any other integer to give an integer result.


Summary Article: integer
from The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide

Any whole number. Integers may be positive or negative; 0 is an integer, and is often considered positive. Formally, integers are members of the set

Z = {... −3, −2, −1, 0, 1, 2, 3, … }

This is the integer set of the number line.

Fractions, such as 1/2 and the decimal 0.35, are known as non-integral numbers (‘not integers’).

The addition (their sum) and subtraction (their difference) of two integers will always result in an integer. The multiplication of two integers (their product) will always result in an integer; however, the division of integers may result in a non-integer.

essays

Integers and number line

Out Of My League? – Factorials and Combinations

Ratio calculation

weblinks

A Plus Maths

BEATCALC: Beat the Calculator

Decimals, Whole Numbers, and Exponents

Order and Operations of Integers

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