Not necessarily.
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I'm not too sure but i think that 1 and 10 are both factors. 100 as well.
Well, honey, any number that is a square of a prime number will have more than 10 factors. So, for example, 16 is the square of 4, a prime number, and it has 10 factors. But if you want more than 10 factors, you gotta step it up to numbers like 36, which is the square of 6, and has 18 factors. Math can be sassy too, you know!
No, every number has at a minimum two factors, which are itself and 1. If these are the only two factors, then the number is prime. If it has more factors, then the number is composite.
The number 9: factors are 9, 3, and 1.
Only perfect squares can have an odd number of factors. The answer is 16. It has five factors: 1,2,4,8,16.