No, but by convention, they usually are. For example, they can be algebraic expressions.
a prime number
If it's a whole number, and those are its only factors, then it's a 'prime number'.
A prime number has exactly two factors: itself and 1.
1009 is a prime number so its only factors are 1 and itself.
A whole number has an odd number of unique factors if and only if it is a perfect square. The perfect squares less than 10 are 0, 1, 4, and 9. Therefore, there are four whole numbers less than 10 that have an odd number of unique factors.
The only whole number factors of 5 are 1 and 5.
The only whole-number factors of 109 are 1 and 109.
Prime. The only factors of a prime number are 1 and the number.
A prime number.
A prime number
a prime number
The only whole number that can do that is 1 .
The limit is infinity if the factors do not have to be whole numbers. If you stipulate that the factors have to be whole numbers, then, yes, for each number, there is a limit to how many factors it has. For example, the number 4 has only 3 whole-number factors: 1, 2, and 4.
A prime number has only two factors - 1 and itself.this is called a prime number. any number that has the only only two factors of one and itself is prime.
You are probably referring to a 'prime' number which has only the number 1 and itself as factors.
A prime.
prime number