Because it's a square number. All perfect squares have an odd number of factors because they have one factor pair that is the same number twice (the square root) and when the factors are listed, the number is listed once.
These numbers between 1 and 40 have an odd number of factors: 4, 9, 16, 25, 36.
Square numbers have an odd number of factors.
Perfect squares are numbers with an odd number of factors.
Oh, dude, let me break it down for you! Numbers with an odd number of factors are called "square numbers." So, in the range of 1-25, the square numbers are 1, 4, 9, and 25. These numbers have factors like 1, the number itself, and the square root, giving them an odd number of factors. So, like, those are the ones you're looking for!
Square numbers have an odd number of factors, but beyond that, any odd number can be a factor.
Composite numbers can have either an odd number or an even number of fractions. Factors of 25 are 1, 5, 25 . (odd number of them) Factors of 26 are 1, 2, 13, and 26 . (even number of them)
An infinite number.
16 has an odd number of factors; its factors are 1, 2, 4, 8, and 16
25
Square numbers have odd amounts of factors because the square root is listed as a single factor, not a pair of factors. For example, the factors of 25 are 1, 5, 25.
These numbers between 1 and 40 have an odd number of factors: 4, 9, 16, 25, 36.
25 is an odd number
No. Any square number has an odd number of factors e.g. 25 = 1, 25, 5
A square number, like 4, 9 and 25.
Square numbers have an odd number of factors.
Square numbers have an odd number of factors.
1, 3 and 9