Question

Find that $8^{103} \bmod(13)$ using Fermat's Little Theorem

score 2k · Answer 1 · 2026-04-10 04:41:53

2k

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Find that $8^{103} \bmod(13)$ using Fermat's Little Theorem

Published on 10 Apr 2026 - 4:41

score 228 · Answer 2 · 2026-04-08 22:46:52

228

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Find non-zero real numbers $a,b,c,d$ such that $a^2+c^2=b^2+d^2$ and $ab+cd=0$.

Published on 08 Apr 2026 - 22:46

score 100 · Answer 3 · 2026-04-08 19:42:48

100

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Computing admissible integers for the Atanassov-Halton sequence

Published on 08 Apr 2026 - 19:42

score 54 · Answer 4 · 2026-03-26 12:06:43

54

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How many elements are in $V((x^3-1,p))\subset\mathrm{Spec}(\mathbb{Z}[x])$?

Published on 26 Mar 2026 - 12:06

score 108 · Answer 5 · 2026-03-23 17:34:13

108

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Number theory equality related to Möbius function

Published on 23 Mar 2026 - 17:34

score 32 · Answer 6 · 2026-04-09 00:05:38

32

Views

Counting characters of bounded conductors

Published on 09 Apr 2026 - 0:05

score 237 · Answer 7 · 2026-04-09 00:04:32

237

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Equivalence of integral primitive indefinite binary quadratic forms

Published on 09 Apr 2026 - 0:04

score 53 · Answer 8 · 2026-04-05 14:25:52

53

Views

Elementary Number Theory proof

Published on 05 Apr 2026 - 14:25

score 539 · Answer 9 · 2026-04-09 23:18:58

539

Views

Tennis balls problem from John H Conway's "Genius At Play"

Published on 09 Apr 2026 - 23:18

score 92 · Answer 10 · 2026-04-05 22:18:29

92

Views

Squares modulo an odd prime

Published on 05 Apr 2026 - 22:18

score 49 · Answer 11 · 2018-01-17 20:07:20

49

Views

Generalising a question about divisibility of two numbers raised to a power

Published on 17 Jan 2018 - 20:07

score 133 · Answer 12 · 2026-03-25 01:20:26

133

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Has anyone seen my formula that approximates the number of primes up to n?

Published on 25 Mar 2026 - 1:20

score 50 · Answer 13 · 2018-01-18 05:48:16

50

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Relatively prime to c + non-relatively prime to c = relatively prime to c?

Published on 18 Jan 2018 - 5:48

score 76 · Answer 14 · 2026-03-22 16:04:20

76

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Prove that $5 \mid 3^{3n+1}+2^{n+1}$

Published on 22 Mar 2026 - 16:04

score 343 · Answer 15 · 2026-04-09 02:01:58

343

Views

Skewes' number, and the smallest $x$ such that $\pi(x) > \operatorname{li}(x) - \tfrac1n \operatorname{li}(x^{1/2})$?

Published on 09 Apr 2026 - 2:01

List Question

Find that $8^{103} \bmod(13)$ using Fermat's Little Theorem

Find non-zero real numbers $a,b,c,d$ such that $a^2+c^2=b^2+d^2$ and $ab+cd=0$.

Computing admissible integers for the Atanassov-Halton sequence

How many elements are in $V((x^3-1,p))\subset\mathrm{Spec}(\mathbb{Z}[x])$?

Number theory equality related to Möbius function

Counting characters of bounded conductors

Equivalence of integral primitive indefinite binary quadratic forms

Elementary Number Theory proof

Tennis balls problem from John H Conway's "Genius At Play"

Squares modulo an odd prime

Generalising a question about divisibility of two numbers raised to a power

Has anyone seen my formula that approximates the number of primes up to n?

Relatively prime to c + non-relatively prime to c = relatively prime to c?

Prove that $5 \mid 3^{3n+1}+2^{n+1}$

Skewes' number, and the smallest $x$ such that $\pi(x) > \operatorname{li}(x) - \tfrac1n \operatorname{li}(x^{1/2})$?

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