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Grade 12th pass8 grade maths

Without doing any calculation, find the numbers which are surely not perfect squares. i. 153 ii. 257

Profile image of Harshit Singh
5 Years agoGrade 12th pass
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1 Answer

Profile image of Harshit Singh
5 Years ago
Dear Student

We know that natural numbers ending with the digits 0, 2, 3, 7 and 8 are not perfect square.

i. 153⟹ Ends with 3. ∴, 153 is not a perfect square

ii. 257⟹ Ends with 7 ∴, 257 is not a perfect square

.

Thanks

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