Question

When is this integer a perfect square: $n^2 + 20n + 12$

score 2.4k · Answer 1 · 2017-08-12 07:00:42

2.4k

Views

When is this integer a perfect square: $n^2 + 20n + 12$

Published on 12 Aug 2017 - 7:00

score 807 · Answer 2 · 2026-03-26 12:58:28

807

Views

Prove $n! +5$ is not a perfect square for $n\in\mathbb{N}$

Published on 26 Mar 2026 - 12:58

score 209 · Answer 3 · 2026-02-28 03:01:57

209

Views

Infinitely many triangular numbers which are of form $n^2-1$

Published on 28 Feb 2026 - 3:01

score 241 · Answer 4 · 2017-08-12 19:38:11

241

Views

How does squaring these multiplicands permit inequality comparison to their multiple?

Published on 12 Aug 2017 - 19:38

score 77 · Answer 5 · 2026-03-29 12:41:16

77

Views

Why $a^4 + b^4$ ($a, b$ are positive integers) is not a perfect square?

Published on 29 Mar 2026 - 12:41

score 533 · Answer 6 · 2017-08-14 15:02:31

533

Views

For a pair of numbers whose difference and sum are square numbers, why is the lower number always even?

Published on 14 Aug 2017 - 15:02

score 285 · Answer 7 · 2026-03-29 19:32:57

285

Views

Squares in arithmetic progression probability

Published on 29 Mar 2026 - 19:32

score 152 · Answer 8 · 2017-08-19 00:33:07

152

Views

How do I simplify the square root of a negative number squares?

Published on 19 Aug 2017 - 0:33

score 7.7k · Answer 9 · 2026-04-01 12:06:29

7.7k

Views

Why are the last two digits of a perfect square never both odd?

Published on 01 Apr 2026 - 12:06

score 34 · Answer 10 · 2017-08-19 01:39:38

34

Views

How do I simplify the square root of variables that include ranges?

Published on 19 Aug 2017 - 1:39

score 103 · Answer 11 · 2017-08-20 14:22:17

103

Views

Find the smallest $a\in\Bbb N$ if $a-\lfloor\sqrt a\rfloor^2=100$

Published on 20 Aug 2017 - 14:22

score 5k · Answer 12 · 2026-03-26 13:01:16

5k

Views

Sum of digits of perfect square

Published on 26 Mar 2026 - 13:01

score 106 · Answer 13 · 2026-03-28 09:53:27

106

Views

Proof that the sum of the even side and the hypotenuse of a coprime (and positive) Pythagorean triple is a square number

Published on 28 Mar 2026 - 9:53

score 38 · Answer 14 · 2017-09-01 14:14:20

38

Views

Prime number as factor of square of other number

Published on 01 Sep 2017 - 14:14

score 71 · Answer 15 · 2017-09-10 00:03:59

71

Views

Which steps did I do wrong in this question?

Published on 10 Sep 2017 - 0:03

List Question

When is this integer a perfect square: $n^2 + 20n + 12$

Prove $n! +5$ is not a perfect square for $n\in\mathbb{N}$

Infinitely many triangular numbers which are of form $n^2-1$

How does squaring these multiplicands permit inequality comparison to their multiple?

Why $a^4 + b^4$ ($a, b$ are positive integers) is not a perfect square?

For a pair of numbers whose difference and sum are square numbers, why is the lower number always even?

Squares in arithmetic progression probability

How do I simplify the square root of a negative number squares?

Why are the last two digits of a perfect square never both odd?

How do I simplify the square root of variables that include ranges?

Find the smallest $a\in\Bbb N$ if $a-\lfloor\sqrt a\rfloor^2=100$

Sum of digits of perfect square

Proof that the sum of the even side and the hypotenuse of a coprime (and positive) Pythagorean triple is a square number

Prime number as factor of square of other number

Which steps did I do wrong in this question?

Trending Questions

Popular # Hahtags

Popular Questions