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What type of number has an odd number of factors?
A perfect square has an odd number of factors. Factors of numbers always come in pairs -- except for perfect squares. Since the square root of a perfect square is listed only once on the list of factors, it results in a list with an odd number of factors.
Numbers that have an odd number of factors are what?
perfect squares
Odd number factors?
Perfect squares are numbers with an odd number of factors.
What numbers with an odd numbers of factors?
Perfect squares have an odd number of factors.
Which number from ten to twenty has an odd number of factors?
Only perfect squares can have an odd number of factors. The answer is 16. It has five factors: 1,2,4,8,16.
How many numbers which are less than 1000 have an odd number of factors?
Perfect squares have an odd number of factors. There are 31 perfect squares less than 1000.
What do all perfect squares have?
Right angles an odd number of factors
What even number less than 100 has an odd number of factors?
Perfect squares have odd numbers of factors. The perfect squares less than 100 are: 1,4,9,16,25,36,49,64,81,100. 64 seems to fit both criteria.
What is the name of the math sequence where you add every odd number?
Perfect squares.
What number is a square number and it is odd?
The square of any odd integer is an odd square number. For example, 3^2 = 9.
Can a perfect square be a prime number Explain?
No. A prime number is always odd.
Is the sum of two square consecutive numbers an odd number?
Yes. One has to be the square of an odd number. The other square has to the the square of the even number either before or after the odd number. If this is confusing just plug in real values. In either case, an odd times and odd is odd. Therefore one of the squares has to be odd. AN even times an even, however, is always even. Therefore, the second square has to be even. Thus, one of the squares is even and the other is odd. An even plus and odd is always odd.
