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A prime number has exactly two factors: itself and 1.

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11y ago

Prime numbers have only 2 factors which are themselves and one

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Q: What is a whole number when it has exactly 2 factors?
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Related questions

What is the name for a whole number that has exactly 2 factors?

Prime. The only factors of a prime number are 1 and the number.


What is the least whole number with exactly 2 different factors?

2 (1 and 2)


A whole number greater than 1 that has exactly 2 factors?

a prime number


What is a name for a whole number that has exactly 2 factors?

You are probably referring to a 'prime' number which has only the number 1 and itself as factors.


What is the smallest whole number with exactly 3 different factors?

The factors of 4 are 1, 2, and 4 .


What is the name for a whole number that has exactly to factors?

A prime number- the factors are 1 and itself. Composite numbers are numbers with more than 2 numbers.


What is the least whole number with exactly 4 different factors?

If you disregard 1 and the number itself, then 12, with the factors 2, 3, 4 and 6. If you include 1 and the number itself, then 6 with factors 1, 2, 3 and 6.


What do you call a number that has exactly 2 factors?

a # that has exactly 2 factors is called a prime number, an example of a prime number is 17 because it is odd and it only has 2 factors, 17= 1 and itself


What is a whole number greater than 1 that has 2 or more factors called?

If it has exactly two factors, it's called a 'prime' number.If it has more than two factors, it's called a 'composite' number.


What number has 2 factors exactly?

Any prime number


What is the only even number the has exactly 2 factors?

2


What is a whole number greater than 1 that has exactly two factors?

Prime numbers. Need to solve for more factors: (use link) http://www.classbrain.com/artteach/publish/article_48.shtml?num=81&worksp= Answer: 2 The factors of 2 are: 1 2 The prime factors are: 2 is a prime number.