Mathematics, 28.02.2021 21:50, coreen9

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

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9. Which of the following groups of numbers are all prime numbers? O A.3. 11, 23, 31 OB.7. 17. 29. 4...