Top network posts

• 93 Do most numbers have exactly $3$ prime factors?
• 17 Is $\frac{1}{\alpha} \in \mathbb{Q}[\alpha]$ for irrational $\alpha$?
• 15 Limit calculation using derivative
• 13 How to compute $\lim\limits_{n\rightarrow \infty} \{(2+\sqrt{3})^{n}\}$, where $\{x\}$ is the fractional part of $x$?
• 12 Prove that there is no 333 consecutive prime numbers such that sum of their squares is also a square.
• 11 Prove that if we decrease by 7 the sum of squares of any three natural numbers, then the result cannot be divisible by 8.
• 11 Max product of $20$ numbers with mean $12$ if $n$-th number is $\frac{n}2$ or $2n$?
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