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Alicia wrote these numbers:2,9,15,21.which of Alicia numbers is not a composite number?

Alicia wrote these numbers:2,9,15,21.which of Alicia numbers is not a composite number?
asked 227k views
3 votes
Alicia wrote these numbers:2,9,15,21.which of Alicia numbers is not a composite number?

asked
User MatrixManAtYrService
by
8.4k points

2 Answers

4 votes
2 is a prime number

not composite

answered
User Jeremy Z
by
8.7k points
4 votes
A number can either be composite or prime. The only prime number that you listed here is 2, because the only factors of 2 are 1 and itself. 
answered
User Diogenes Creosote
by
7.8k points
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