# Science / Mathematical Sets

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## Can you name the following mathematical sets given the defining property of each element in that set?

#### by Ejeq7 Quiz not verified by Sporcle

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Property:Mathematical Set:
Any integer which is not evenly divisible by 2.
Any positive integer equal to the sum of its positive divisors excluding the number itself.
Any positive integer that is divisible only by 1 and itself.
The product of any integer n, raised to the power of 2.
The product of n(n-1)(n-2)(n-3)...(n-(n-1)), where n is any positive integer.
Any number which is equal to n+(n-1)+(n-2)+...+(n-(n-1)), where n is any positive integer.
Any number which is the sum of the previous two numbers in the series beginning: 2,1...
Any positive integer (although some people also include 0 as an element of this set).
Any real number which cannot be expressed as a ratio of two integers.
Any positive real number expressed as a fraction of 100.
Any number which has two constituent parts - a real part and an imaginary part.
Any real number less than 0.
Any number which is the sum of the previous two numbers in the series beginning: 0,1...

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