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Mathematics
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Anurag A's user avatar
Anurag A's user avatar
Anurag A
  • Member for 11 years, 4 months
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  • USA
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I have been working in Algebraic Number Theory and Cryptography for quite some time :-)

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131
How to prove that all odd powers of two add one are multiples of three
Jan 19, 2016
28
Long limit question
Feb 26, 2015
27
Conjecture: If $ N $ and $ N + 10 $ are prime, then $ N + 20 $ is composite.
Jun 15, 2014
26
What does $\sum_{k=0}^\infty \frac{k}{2^k}$ converge to?
Jun 14, 2015
26
Functions that are continuous only at two points?
Jun 8, 2014
19
If $x$ and $y$ are not both $0$ then $ x^2 +xy +y^2> 0$
Dec 19, 2014
18
Show that any set in a metric space can be written as the intersection of open sets
Jul 24, 2017
18
Solving functional equation using inverses
Oct 28, 2023
17
Evaluate $\sum_{k=0}^{n} {n \choose k}{m \choose k}$ for a given $n$ and $m$.
Jul 3, 2014
17
P is a natural number. 2P has 28 divisors and 3P has 30 divisors. How many divisors of 6P will be there?
Jan 12, 2016