Numbers having 3 factors are 4 and the squares of all odd prime numbers (9, 25, 49, 121, etc.).
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3 is a prime number. A prime number is a product that only has 2 factors; 1 and itself. So the factors of 3 are 1,3.
Since 3 is prime, the factors are 1 and 3.
Proper factors of a number do not include 1 or the number itself. For example, all of the factors of 6 are 1, 2, 3, and 6, but the proper factors of 6 are 2 and 3.
The factors of 6 are 1, 2, and 3. This means that any number with 6 as a factors also has 1, 2, and 3 as factors.
The factors of a number are the whole numbers that can be multiplied together to equal that number. For the numbers 3, 6, and 9, the factors are as follows: The factors of 3 are 1 and 3. The factors of 6 are 1, 2, 3, and 6. The factors of 9 are 1, 3, and 9.