Select Board & Class

Login

Playing With Numbers

Question 8:

Which of the following numbers are prime?

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

Answer:

(a) 23 23 = 1 × 23 23 = 23 × 1

23 has only two factors, 1 and 23. Therefore, it is a prime number.

(b) 51 51 = 1 × 51 51 = 3 ...

To view the solution to this question please

What are you looking for?

Syllabus