Question

Ratios between consecutive $k$-smooth numbers

score 179 · Answer 1 · 2019-10-30 23:52:14

179

Views

Ratios between consecutive $k$-smooth numbers

Published on 30 Oct 2019 - 23:52

score 62 · Answer 2 · 2026-03-27 07:47:42

62

Views

Recursive Function is primitive or not

Published on 27 Mar 2026 - 7:47

score 36 · Answer 3 · 2019-11-03 20:40:19

36

Views

Prime numbers? numbers X where there's no X'<X,N>1,i>0 with X' * N^i = X

Published on 03 Nov 2019 - 20:40

score 215 · Answer 4 · 2019-11-06 20:59:23

215

Views

Show that $2^n+3^n+5^n+6^n$ isn't a perfect cube, for all $n \in \mathbb{N}$.

Published on 06 Nov 2019 - 20:59

score 36 · Answer 5 · 2026-03-26 11:04:21

36

Views

A cubic equation whose roots are distinct natural number having no common divisors

Published on 26 Mar 2026 - 11:04

score 86 · Answer 6 · 2019-11-12 15:49:23

86

Views

What extra structure is there in the $\mathbb{Z}$ partial magma respect to $\mathbb{N}$ if both sets are not closed under division?

Published on 12 Nov 2019 - 15:49

score 36 · Answer 7 · 2019-11-15 12:03:28

36

Views

Is $0$ included as an element of the natural numbers?

Published on 15 Nov 2019 - 12:03

score 637 · Answer 8 · 2019-11-15 21:45:53

637

Views

Euclidean Algorithm proof exercise Terence Tao "Analysis I"

Published on 15 Nov 2019 - 21:45

score 89 · Answer 9 · 2019-11-16 17:26:32

89

Views

Verify my solution - infinite prime number in ultraproduct.

Published on 16 Nov 2019 - 17:26

score 525 · Answer 10 · 2019-11-17 17:29:38

525

Views

Show that if $n$ and $m$ are both positive, then $nm$ is positive.

Published on 17 Nov 2019 - 17:29

score 57 · Answer 11 · 2019-11-18 21:35:19

57

Views

A Tricky Partition of Natural Numbers

Published on 18 Nov 2019 - 21:35

score 3.1k · Answer 12 · 2026-03-26 12:42:49

3.1k

Views

How does Peano Postulates construct Natural numbers only?

Published on 26 Mar 2026 - 12:42

score 65 · Answer 13 · 2019-11-26 22:55:19

65

Views

How do I prove that $|\Bbb N^\Bbb N|$ is equal to $|2^\Bbb N|$?

Published on 26 Nov 2019 - 22:55

score 80 · Answer 14 · 2019-11-30 01:17:47

80

Views

Let $p>1$ be a natural number. Prove that $n=\sqrt[p-1]{p}$ can't be a natural number if $p>2$.

Published on 30 Nov 2019 - 1:17

score 28 · Answer 15 · 2019-12-01 16:38:47

28

Views

Solve in natural

Published on 01 Dec 2019 - 16:38

List Question

Ratios between consecutive $k$-smooth numbers

Recursive Function is primitive or not

Prime numbers? numbers X where there's no X'<X,N>1,i>0 with X' * N^i = X

Show that $2^n+3^n+5^n+6^n$ isn't a perfect cube, for all $n \in \mathbb{N}$.

A cubic equation whose roots are distinct natural number having no common divisors

What extra structure is there in the $\mathbb{Z}$ partial magma respect to $\mathbb{N}$ if both sets are not closed under division?

Is $0$ included as an element of the natural numbers?

Euclidean Algorithm proof exercise Terence Tao "Analysis I"

Verify my solution - infinite prime number in ultraproduct.

Show that if $n$ and $m$ are both positive, then $nm$ is positive.

A Tricky Partition of Natural Numbers

How does Peano Postulates construct Natural numbers only?

How do I prove that $|\Bbb N^\Bbb N|$ is equal to $|2^\Bbb N|$?

Let $p>1$ be a natural number. Prove that $n=\sqrt[p-1]{p}$ can't be a natural number if $p>2$.

Solve in natural

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