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Squares and Square Roots
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08/08/2021 10:50 am
Topic starter
The following numbers are obviously not perfect squares. Give reason.
(i) 64000
(ii) 89722
(iii) 222000
(iv) 505050
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08/08/2021 10:51 am
We know that natural numbers ending in the digits 0, 2, 3, 7 and 8 are not perfect squares.
(i) 64000 ⟹ Ends with 0
(ii) 89722 ⟹ Ends with 2
(iii) 222000 ⟹ Ends with 0
(iv) 505050 ⟹ Ends with 0