List questions from square-numbers

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Find two arithmetic progressions of three square numbers

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83

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Perfect square with negative constant term

Published on 20 Oct 2017 - 10:56

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Triangle and square number

Published on 28 Mar 2026 - 2:59

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If 'a' is divisible by 'b^2' then 'a' is divisible by 'b'.

Published on 29 Oct 2017 - 15:37

166

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Interesting properties of squares.

Published on 05 Nov 2017 - 7:57

48

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Squaring $a+b=c$ and squaring $a+b-c=0$

Published on 05 Nov 2017 - 10:25

44

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Finding n and n^2 in a collection of digits

Published on 05 Nov 2017 - 13:14

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Solve for $a,b,c,d \in \Bbb R$, given that $a^2+b^2+c^2+d^2-ab-bc-cd-d+\frac 25 =0$

Published on 09 Nov 2017 - 14:21

1.9k

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Show that the last two decimal digits of a perfect square must be one of the following pairs.

Published on 01 Apr 2026 - 15:10

73

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Only certain values seem to make an expression into perfect square, can you help me prove or disprove it?

Published on 26 Nov 2017 - 0:54

971

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Find sum of noninteger number of terms

Published on 30 Nov 2017 - 2:07

129

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Integer solutions to $\sqrt{ax^2+1}$ and the unusually large solutions

Published on 01 Dec 2017 - 4:42

78

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Irrational numbers $z_0,z_1$ such that $\sqrt{z_0^2+z_1^2}$ is an integer

Published on 12 Dec 2017 - 14:37

201

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Factorials, squares and Bertrand's postulate

Published on 14 Dec 2017 - 14:16

List Question

Arithmetic progression of four square number with the same common difference

Find two arithmetic progressions of three square numbers

Perfect square with negative constant term

Triangle and square number

If 'a' is divisible by 'b^2' then 'a' is divisible by 'b'.

Interesting properties of squares.

Squaring $a+b=c$ and squaring $a+b-c=0$

Finding n and n^2 in a collection of digits

Solve for $a,b,c,d \in \Bbb R$, given that $a^2+b^2+c^2+d^2-ab-bc-cd-d+\frac 25 =0$

Show that the last two decimal digits of a perfect square must be one of the following pairs.

Only certain values seem to make an expression into perfect square, can you help me prove or disprove it?

Find sum of noninteger number of terms

Integer solutions to $\sqrt{ax^2+1}$ and the unusually large solutions

Irrational numbers $z_0,z_1$ such that $\sqrt{z_0^2+z_1^2}$ is an integer

Factorials, squares and Bertrand's postulate

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