What is the next prime number in the sequence: 11, 13, 17, 19, 23, ___?
Answer and explanation
Correct answer: C. 29
- Step 1: List numbers after 23: 24 (even), 25 (55), 26 (even), 27 (39), 28 (even), 29. Step 2. 29 has no divisors other than 1 and 29, so it is the next prime. Answer: 29. Why not the others: 25 and 27 are composite; 31 skips 29.
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