CBSE Class 6 Mathematics Question 24 of 48

Prime Time — Question 25

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25
Question
The numbers 13 and 31 are prime numbers. Both these numbers have same digits 1 and 3. Find such pairs of prime numbers up to 100.
Answer

Required pairs of prime numbers up to 100 having the same digits are: 17 and 71; 37 and 73; 79 and 97.


Source: This question is from Prime Time, Mathematics — Class 6, CBSE Board.

Key Concepts Covered

This question tests your understanding of the following concepts from the chapter Prime Time: Numbers, Prime, Same, Digits, Pairs, Prime Time. These are fundamental topics in Mathematics that students are expected to master as part of the CBSE Class 6 curriculum.

A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Mathematics papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.

How to Approach This Question

Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.

Key Points to Remember

  • Always show your working steps clearly.
  • Verify your answer by substituting values back into the equation.
  • Practice similar problems from the textbook exercises.
  • Memorise important formulae and their conditions of applicability.

Practice more questions from Prime Time — Mathematics, Class 6 CBSE