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Q: Which of the following is the prime number series from 1 to 20?
  • A. 3, 5, 7, 11, 13, 17, 19
  • B. 2, 5, 7, 9, 11, 13, 17, 19
  • C. 2, 3, 5, 7, 11, 13, 17, 19
  • D. 1, 2, 3, 5, 7, 11, 13, 17, 19
Correct Answer: Option C - Prime numbers:- The number which is divisible by 1 and itself only. Hence, from options, the required series will be 2,3,5,7,11,13,17,19.
C. Prime numbers:- The number which is divisible by 1 and itself only. Hence, from options, the required series will be 2,3,5,7,11,13,17,19.

Explanations:

Prime numbers:- The number which is divisible by 1 and itself only. Hence, from options, the required series will be 2,3,5,7,11,13,17,19.