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Posts tagged number-theory

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11 posts RSS Subscribe
Tag Only Tag + Children
40%
+0 −1
Q&A Questions regarding the Kurepa Conjecture

0 answers  ·  posted 7mo ago by Math_Maven‭  ·  edited 7mo ago by Math_Maven‭

Question number-theory soft-question reference-request factorial conjecture
75%
+4 −0
Q&A Is it known whether most numbers are normal or not

1 answer  ·  posted 1y ago by Grove‭  ·  last activity 8mo ago by Michael Hardy‭

Question number-theory
77%
+5 −0
Q&A How to find perfect squares such that their base 9 representation is all 1s?

1 answer  ·  posted 11mo ago by CrSb0001‭  ·  last activity 11mo ago by Lisanne‭

Question number-theory bases recreational-mathematics
81%
+7 −0
Q&A Prove that 49 is the only prime square to be followed by twice a prime square and then a semiprime

1 answer  ·  posted 2y ago by Peter Taylor‭  ·  last activity 2y ago by Servaes‭

Question number-theory integer-sequences
71%
+3 −0
Q&A Show that $\forall n \in \mathbb{Z}^{+}$, $25^n \equiv 25 \bmod{100}$.

2 answers  ·  posted 2y ago by Carefree Explorer‭  ·  edited 2y ago by Peter Taylor‭

Question number-theory recreational-mathematics modular-arithmetic
75%
+4 −0
Q&A Proving that $p\mid (p+1776)$ if $p$ is a prime and $p(p+1776)$ is a perfect square

2 answers  ·  posted 2y ago by Snoopy‭  ·  last activity 2y ago by Snoopy‭

Question number-theory algebra
62%
+3 −1
Q&A Why are you permitted to define $1 − 1 + 1 − 1 + . . .$?

1 answer  ·  posted 4y ago by Chgg Clou‭  ·  last activity 3y ago by JRN‭

Question number-theory
77%
+5 −0
Q&A Normal in one base and not in another?

0 answers  ·  posted 4y ago by Grove‭

Question number-theory normal bases
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Q&A Why does the decimal expansion of $1/(10n - 1)$ have this neat pattern?

3 answers  ·  posted 4y ago by The Amplitwist‭  ·  last activity 4y ago by celtschk‭

Question number-theory high-school-mathematics
77%
+5 −0
Q&A Can we adapt Furstenberg's proof of the infinitude of primes to other interesting subsets of the integers?

0 answers  ·  posted 4y ago by HDE 226868‭  ·  edited 4y ago by msh210‭

Question number-theory topology
71%
+3 −0
Q&A Asymptotics of counting integers by prime signature

1 answer  ·  posted 4y ago by Peter Taylor‭  ·  last activity 4y ago by Derek Elkins‭

Question number-theory
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