Which of the following is a prime number?

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Solution

The correct option is B
23

23 is a prime number as it is divisible by 1 and 23
42 is divisible by 1, 2, 3, 6, 7, 14, 21 and 42
26 is divisible by 1, 2, 13, 26
46 is divisible by 1, 2, 23, 46

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Similar questions

Question 8

Which of the following numbers are prime:

(a) 23 (b) 51 (c) 37 (d) 26

Which of the following numbers are prime?

(a) 23 (b) 51 (c) 37 (d) 26

42

42

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