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Deepa says: 'If a number ends in 5 and is bigger than 5, it must be composite.'
Is Deepa correct?

Class 6Prime and Composite NumbersPlaying with Numbers
  • AYes, it is divisible by 5
  • BNo, some are prime
  • COnly for even numbers
  • DOnly for numbers above 100

Step-by-Step Solution

Any number ending in 5 is divisible by 5. If it is bigger than 5 it has 1, 5 and itself as factors, so it is composite.
Answer: A) Yes, it is divisible by 5

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