Start learning →

Which one of 1, 2, 3 and 5 is the least prime number?

A5
B3
C2
D1
Answer & Solution
Correct answer: C. 2
A prime must be greater than 1 and 2 has no divisors other than 1 and itself, so it is the smallest.
Practise this question with Quill — RRB NTPC →

Keep practising Number System

Browse all Number System questions for RRB NTPC, or explore more Mathematics topics.

Start a Number System lesson →