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when the number is a square of a Prime number. Of course, it will have a repeated factor, but it will still only have 3 distinct factors. 4, 9, 25, 49, 121 are some examples.

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Q: How can a number have only 3 factors?
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Related questions

How many numbers have only 3 factors?

Okay, whoever said that a number can only have an even number of factors IS Wrong Take a prime number and square it. If you square a prime number, the number you get will only have 3 factors. For example, if I squared the number 3, I would get 9. 9 only has three factors: 9, 3, 1 Any prime number squared has Three factors.


Why number 3 is prime number?

The number 3 is a prime number because 1 and 3 is its only factors. A prime number has only two factors, in this case 1 and 3 are the factors. 17,11,7 and 13 are examples of prime numbers.


Is 3 a prime number because it doesn't have any factors?

3 is a prime number because it has exactly two distinct factors. The only factors of a prime number are 1 and itself. The only factors of 3 are 1 and 3, so it is a prime number.


Is 3 a composite or a prime number?

3 is a prime number because its only factors are 1 and 3. A prime number is a number that's factors are 1 and itself.


What are the factors and prime factors of 3?

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.


What number has only 3 factors?

Nine


Can a prime number have 3 factors?

A prime number has only 2 factors, 1 and itself.


What are the factors and prime factors of 3 and its composite?

3 is prime number so its only factors are 1 and itself. ^_^


Is 36201 a prime number?

36,201 is not a prime number because 3 is one of its factors. 3 is one of the factors of any number whose digits add up to 3 or a multiple of 3. The only prime number with 3 as one of its factors is the number 3.


What are the factors of three?

3 is a prime number; its only factors are 1 and itself.


Does the number 81 only have 3 factors?

No. It has 5.


Is 3 a factor of 0?

No. It is a prime number, so its only factors are 1 and 3.