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Question
The following number are obviously not perfect square. Give reason.
222000
Give Reasons
Sum
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Solution
- The square of any number must end with the digits 0, 1, 5, 6 and 9. Only then is the square of a number a perfect square.
- The number 222000 has 3 zeros at the end, which is odd. It is not a perfect square.
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Chapter 5: Squares and Square Roots - EXERCISE 5.1 [Page 58]
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