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An integer is a positive or negative whole number. For example, 38, 4, 0, 12, 399 are all integers. Fractions, decimals and percents are not integers because they are not whole numbers. More »
Some, but not all, fractions are integers. Fractions that can be simplified so that they have a 1 as the denominator are integers. Fractions that cannot be expressed this way are not integers. More »
In math, the term "integer" refers to numbers that include the counting numbers, zero and the negative of counting numbers. Integers do not contain either a fractional or a decimal part. More »
A noninteger is a number that is not a whole number, a negative whole number or zero. It is any number not included in the integer set, which is expressed as { ... 3, 2, 1, 0, 1, 2, 3, ... }. More »
A composite number is a positive whole number that can be divided evenly by a number other than itself and one. For example, 12 is a composite number, as it can be divided evenly by three and four. More »
In math terms, a number's multiples are the product of that number and another whole number. For instance, multiples of seven include seven, 14 and 21 because these numbers result when seven is multiplied by 1, 2 and 3. More »
Zero is an integer. An integer is defined as all positive and negative whole numbers and zero. Zero is also a whole number, a rational number and a real number, but it is not typically considered a natural number, nor is... More »

US StandardsAligned
K12 Curriculum Aligned to Stateand Common Core Standards.

IXL Family Membership
Get Started for $9.95/month.Win Prizes, Certificates. Have Fun!

IXL K12 Math Practice
IXL is the Web's Most AdaptiveMath Practice Site. Try it Now!

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