List questions from prime-factorization

Published on 19 Oct 2018 - 18:19

173

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Ring with infinitely reducible elements

Published on 25 Mar 2026 - 2:57

105

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What are the most (and least) likely factors of a composite Mersenne number?

Published on 22 Feb 2026 - 23:11

57

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Base $b$ and efficient integer factorisation

Published on 22 Oct 2018 - 20:24

131

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A strange seemly pattern from some even numbers. Is there a known theorem that can explain this pattern?

Published on 28 Oct 2018 - 13:05

543

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A conjecture on consecutive odd composite numbers

Published on 30 Oct 2018 - 10:23

116

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Expected number of digits of the smallest prime factor of $77^{77}-18$

Published on 31 Oct 2018 - 19:44

279

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Prove that $8p^2+2p+1$ is prime number

Published on 31 Oct 2018 - 20:45

168

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Prime factor of larger numbers by hand/simple calculator $12402^5$

Published on 01 Nov 2018 - 10:10

203

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Which is the smallest semiprime above $10^k$ with the desired property?

Published on 07 Nov 2018 - 16:31

131

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Is the palindrome-prime factor of $p-1$ always larger than that of $p+1$?

Published on 25 Mar 2026 - 4:42

42

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Non-Linear Diophantine Equation in Two Variables

Published on 08 Nov 2018 - 17:20

190

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What other uses are there for Prime numbers?

Published on 25 Mar 2026 - 20:57

189

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Find a prime divisor of the these numbers

Published on 10 Nov 2018 - 15:35

78

Views

The prime factorization of $15$ when finding the number of solutions to $15=a^{2}+b^{2}$.

Published on 11 Nov 2018 - 3:44

List Question

Prime factorization of very large integer with quadratic residue and its square roots

Ring with infinitely reducible elements

What are the most (and least) likely factors of a composite Mersenne number?

Base $b$ and efficient integer factorisation

A strange seemly pattern from some even numbers. Is there a known theorem that can explain this pattern?

A conjecture on consecutive odd composite numbers

Expected number of digits of the smallest prime factor of $77^{77}-18$

Prove that $8p^2+2p+1$ is prime number

Prime factor of larger numbers by hand/simple calculator $12402^5$

Which is the smallest semiprime above $10^k$ with the desired property?

Is the palindrome-prime factor of $p-1$ always larger than that of $p+1$?

Non-Linear Diophantine Equation in Two Variables

What other uses are there for Prime numbers?

Find a prime divisor of the these numbers

The prime factorization of $15$ when finding the number of solutions to $15=a^{2}+b^{2}$.

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