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3 years ago

Which of the following groups of numbers are all prime numbers? A. 3, 11, 23, 31 B. 2, 3, 5, 9 C. 2, 5, 15, 19 D. 7, 17, 29, 49

Mathematics

2 answers:

puteri [66]3 years ago

6 0

I think it is A. or D

Mekhanik [1.2K]3 years ago

3 0

A because 9 is not prime in answer B, 15 is not prime in answer C, and 49 is not prime in answer D. So the correct answer is A.

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