Question

Why $xb^x = a$ cannot be solved by arithmetic steps? (a formal explanation)

score 80 · Answer 1 · 2026-04-13 15:28:58

80

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Why $xb^x = a$ cannot be solved by arithmetic steps? (a formal explanation)

Published on 13 Apr 2026 - 15:28

score 135 · Answer 2 · 2026-04-13 20:38:13

135

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$n(n+1)$ is even - proof without induction

Published on 13 Apr 2026 - 20:38

score 215 · Answer 3 · 2026-04-11 11:56:29

215

Views

Real life water bill problem (want to check myself)

Published on 11 Apr 2026 - 11:56

score 157 · Answer 4 · 2026-04-11 15:28:41

157

Views

Executions per second calculation

Published on 11 Apr 2026 - 15:28

score 7k · Answer 5 · 2026-04-10 00:35:00

7k

Views

Is it true that the sum of all numbers equal 0?

Published on 10 Apr 2026 - 0:35

score 132 · Answer 6 · 2015-11-29 01:25:09

132

Views

Generalizations of Gauss Lemma

Published on 29 Nov 2015 - 1:25

score 9k · Answer 7 · 2015-11-29 08:08:34

9k

Views

The sum of the greatest 3-digit number and the smallest 4-digit number is???

Published on 29 Nov 2015 - 8:08

score 396 · Answer 8 · 2026-04-09 05:54:54

396

Views

How to decide what combinatorics method to use?

Published on 09 Apr 2026 - 5:54

score 109 · Answer 9 · 2026-04-02 05:00:30

109

Views

Showing this fraction is less than one?

Published on 02 Apr 2026 - 5:00

score 423 · Answer 10 · 2026-04-11 02:10:36

423

Views

$n$-th root for a negative $n$

Published on 11 Apr 2026 - 2:10

score 83 · Answer 11 · 2026-03-29 17:27:36

83

Views

Amount become $9$ times in $12$ years at Compound interest. In what time it will become $27$ times

Published on 29 Mar 2026 - 17:27

score 224 · Answer 12 · 2026-04-01 08:50:46

224

Views

How to estimate numbers like $(19/20)^{30}$

Published on 01 Apr 2026 - 8:50

score 1.9k · Answer 13 · 2015-12-02 12:32:17

1.9k

Views

Prove $\frac{1}{a^3+b^3+abc}+\frac{1}{a^3+c^3+abc}+\frac{1}{b^3+c^3+abc} \leq \frac{1}{abc}$

Published on 02 Dec 2015 - 12:32

score 65 · Answer 14 · 2015-12-02 16:34:10

65

Views

I need help in solving this proof when $p_1$, $p_2, \dotsc, p_n$ are distinct prime numbers

Published on 02 Dec 2015 - 16:34

score 74 · Answer 15 · 2026-04-11 08:53:48

74

Views

Can you find the factors of the sum of 2 integers given their factors?

Published on 11 Apr 2026 - 8:53

List Question

Why $xb^x = a$ cannot be solved by arithmetic steps? (a formal explanation)

$n(n+1)$ is even - proof without induction

Real life water bill problem (want to check myself)

Executions per second calculation

Is it true that the sum of all numbers equal 0?

Generalizations of Gauss Lemma

The sum of the greatest 3-digit number and the smallest 4-digit number is???

How to decide what combinatorics method to use?

Showing this fraction is less than one?

$n$-th root for a negative $n$

Amount become $9$ times in $12$ years at Compound interest. In what time it will become $27$ times

How to estimate numbers like $(19/20)^{30}$

Prove $\frac{1}{a^3+b^3+abc}+\frac{1}{a^3+c^3+abc}+\frac{1}{b^3+c^3+abc} \leq \frac{1}{abc}$

I need help in solving this proof when $p_1$, $p_2, \dotsc, p_n$ are distinct prime numbers

Can you find the factors of the sum of 2 integers given their factors?

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