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Every integer is not a whole number, but every whole number is an integer. An integer is any number, positive, negative or zero, that is able to be represented without a fraction or decimal, according to Reference.com. T... More »
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 »
A whole number belongs to the set of integers that are equal to or greater than zero. For example, the set of numbers {0, 1, 2, 3, 4, 5, ...} contains all of the whole numbers. More »
Every integer is a rational number. An integer is a whole number, whether positive or negative, including zero. A rational number is any number that is able to be expressed by the term a/b, where both a and b are integer... More »
The number 16 is an even number and is the only integer that has the form xy=yx, where x and y are different numbers (2 and 4). Another fact is that the base 16, or hexadecimal system, is a notational system for expressi... More »
A prime number in math is an integer greater than 1 that is evenly divisible by only 1 and the number itself. One is not considered a prime number, because prime numbers by definition have two factors, and the number 1 o... More »
A positive integer is a number greater than zero that can be expressed without using a fraction. Five, 72 and 100,000 are all examples of positive integers. 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!

IXL Teacher Membership
Sign Up for a Free 30Day Trial NowGet Your Students Online in Minutes