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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 »
Integers can be positive or negative. Integers are all the round numbers (not fractions of numbers or decimals) from the very large negative numbers, through zero, and up to the very large positive numbers. 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 »
To find the greatest common factor of two or more integers, the common prime factors of each number are multiplied together. The result is the greatest common factor of those two or more integers. If there are no common ... More »
Even numbers are integers that when divided by two produce another integer. Odd numbers are integers that are not divisible by two; in other words, when dividing an odd number by two, the result is not an integer. More »
Rational numbers are numbers that can be expressed as the ratio of two integers, whereas irrational numbers cannot be expressed as a ratio of integers. Irrational numbers expressed as decimals generate an unending series... More »
Consecutive integers are two integers that sit adjacent to each other in a number sequence. An integer is a positive or negative whole number. The lowest value set of positive consecutive integers are 1 and 2, and the hi... 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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