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Ng Yong Hao's user avatar
Ng Yong Hao's user avatar
Ng Yong Hao's user avatar
Ng Yong Hao
  • Member for 13 years, 5 months
  • Last seen more than 4 years ago
  • Singapore
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80
Not especially famous, long-open problems which anyone can understand
Jun 22, 2012
question
12
Generating All Permutations Without Repetition Using Two Generators
Jun 16, 2012
answer
8
Interesting mathematical documentaries
Jun 22, 2012
answer
7
Fastest way to factor integers < 2^60
Nov 22, 2012
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6
Magic trick based on deep mathematics
Jun 22, 2012
question
2
Enumerating all Hamiltonian Cycles in a Bipartite Vertex Transitive Graph
Nov 16, 2011
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2
Small geometric progression modulo N
Aug 10, 2012
answer
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primes dividing binomial coefficients
Jun 23, 2012
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Diophantine equation: $x^2+y^2+z^2=n(xy+yz+zx)$
12
Find $a,b,c \in \Bbb N$ such that $n^3+a^3=b^3+c^3$
11
Applications of Abstract Algebra to elementary mathematics
10
Kernel of Group Action
10
Given two primes $p$ and $q$, show that there always exists an $x$ such that only one of $p+x$ and $q+x$ is prime