Notifications
Clear all
Squares and Square Roots
1
Posts
2
Users
0
Likes
176
Views
0
08/08/2021 10:47 am
Topic starter
The following numbers are obviously not perfect squares. Give reason.
(i) 1057
(ii) 23453
(iii) 7928
(iv) 222222
1 Answer
0
08/08/2021 10:49 am
We know that natural numbers ending in the digits 0, 2, 3, 7 and 8 are not perfect squares.
(i) 1057 ⟹ Ends with 7
(ii) 23453 ⟹ Ends with 3
(iii) 7928 ⟹ Ends with 8
(iv) 222222 ⟹ Ends with 2