2) Which of the following numbers are prime numbers? 2, 3, 5, 7, 9, 11, 12, 15

  1. Which of the following numbers are prime numbers? 2, 3, 5, 7, 9, 11, 12, 15
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2 Answers

2,3,5,7,11 are prime

the rest are divisible by 3
by Level 1 User (940 points)

2 is a prime number, 3 is a prime number, 5 is a prime number, 7 is a prime number, 11 is a prime number.

9, 12, 15 are all composite numbers.         

smiley

by

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