Nilotpal Kanti Sinha's user avatar
Nilotpal Kanti Sinha's user avatar
Nilotpal Kanti Sinha's user avatar
Nilotpal Kanti Sinha
  • Member for 11 years, 11 months
  • Last seen more than a month ago
0 votes

When is $f(a,b)=\frac{a^2+b^2}{1+ab}$ a perfect square rational number?

6 votes
Accepted

Asymptotic bounds on $\pi^{-1}(x)$ (inverse prime counting function)

3 votes

Are sums of the inverses of prime siblings finite?

1 vote

Square and reversed integer

7 votes

Integer dynamics hitting infinitely many primes

0 votes

A divergent series related to the number of divisors of of p-1

5 votes
Accepted

How can an integer be factorized as n*m so that n^m has the highest value.

23 votes

Mathematicians whose works were criticized by contemporaries but became widely accepted later

6 votes
Accepted

Sum involving binomial coefficients

9 votes

Not especially famous, long-open problems which anyone can understand

8 votes

Upper bounds for the sum of primes up to $n$

9 votes

Why could Mertens not prove the prime number theorem?