alleryStart learning →A prime number is a counting number greater than 1 with what property regarding its factors?
AIt has exactly two factors, 1 and itself
BIt has more than two different factors
CIt has exactly three different factors
DIt has no factors other than itself
Answer & Solution
Correct answer: A. It has exactly two factors, 1 and itself
1. The rule for prime numbers requires the number to be greater than 1 and to have only two factors, 1 and itself.
2. Being greater than 1 alone is not enough, since many such numbers have more than two factors.
3. Having exactly three factors, or claiming no factor besides itself exists, does not match the definition of a prime number.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 2 "The Language of Algebra", section 2.4 Find Multiples and Factors_
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