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Question
The following number are obviously not perfect square. Give reason.
222222
Give Reasons
Sum
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Solution
- The square of numbers may end with any one of the digits 0, 1, 5, 6, or 9. Also, a perfect square has even number of zeroes at the end of it.
- 222222 has its unit place digit as 2. Therefore, it cannot be a perfect square.
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Chapter 5: Squares and Square Roots - EXERCISE 5.1 [Page 58]
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