Not necessarily.
I'm not too sure but i think that 1 and 10 are both factors. 100 as well.
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.
Four
The number itself becomes double.
How to know that you found all the factors for example my teacher taught me that when u reach a double diget number that is all the factors. ( 6x6)-~ double diget number
1 is the only number between 1 and 100 that has too few factors to be a prime number.
1
Any number with 11 in it is a factor: it is a factor of double the number, for example.
The number 4,655,851,200 has 2,016 factors; too many to list here.
The concept of the number of factors is appropriate only with positive integers. Otherwise, if p is a factor of the given number n, do you also count -p? That would double the number of factors. So are there 3 factors or 6?
Square numbers have too many factors to be prime.
There are three equivalent definitions for an abundant number.A number is abundant if:the sum of all its factors (including itself) is more than double the number;the sum of all factors of the number which are smaller than the number, must be more than the number;the sum of all proper factors of the number must be at least as large as the number.
I'm not too sure but i think that 1 and 10 are both factors. 100 as well.
Since 19 is a prime number, it only has two factors - 1 and 19.
Sometimes, if there aren't too many.