Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 112)
112.
Which one of the following can't be the square of natural number ?
32761
81225
42437
20164
None of these
Answer: Option
Explanation:

The square of a natural number never ends in 7.

42437 is not the square of a natural number.

Discussion:
9 comments Page 1 of 1.

Priya said:   4 years ago
Thankyou @Bhargav & @Narasingarao.
(1)

Hariharan said:   4 years ago
Thanks @Bhargav & @Narasingarao.

Brijendra Yadav said:   5 years ago
Thanks @Narasingarao.
(1)

Bhargav said:   7 years ago
@All.

For example take from 1 to 10 and square all you will get 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 and it was clear that it will not end with 2, 3, 7, 8.
(5)

Adii said:   7 years ago
How @Narasingarao. Please explain it.

Pavan said:   7 years ago
Thanks @Narasingarao.

Ashu said:   9 years ago
Thanks @Narasingarao.

Ashu said:   9 years ago
What are the rules to find whether the number is square of a natural number?

Narasingarao said:   1 decade ago
Square of natural number never ends with 2, 3, 7 & 8.
(1)

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