Question

real number and decimal expansions

score 402 · Answer 1 · 2020-04-30 11:42:18

402

Views

real number and decimal expansions

Published on 30 Apr 2020 - 11:42

score 28 · Answer 2 · 2020-05-06 14:48:01

28

Views

Number equal to the product of its digits

Published on 06 May 2020 - 14:48

score 51 · Answer 3 · 2020-05-09 17:56:25

51

Views

What does it mean that two numbers are within two decimal places of each other?

Published on 09 May 2020 - 17:56

score 78 · Answer 4 · 2020-05-12 01:30:37

78

Views

Why $c$ closed to $-2\times10^n$ in $(1-c^2)^3+(c^3+10^nc^2-1)^3+(10^n c^2-1)^3=n$ for $n >1$?

Published on 12 May 2020 - 1:30

score 369 · Answer 5 · 2020-05-12 09:11:32

369

Views

Identifying a number is an integer, fraction or decimal.

Published on 12 May 2020 - 9:11

score 255 · Answer 6 · 2020-05-12 15:47:34

Prove that for an integer n larger than or equal to 2, the period for the decimal expression of the rational number $\frac{1}{n}$ is at most n -1.

score 88 · Answer 7 · 2026-03-25 23:39:14

88

Views

Why the first $x$ decimal places of $(5+\sqrt{26})^{x}$ are following a pattern?

Published on 25 Mar 2026 - 23:39

score 32 · Answer 8 · 2020-05-15 23:25:59

32

Views

Question concerning a product of digits algorithm

Published on 15 May 2020 - 23:25

score 61 · Answer 9 · 2026-02-23 07:40:35

61

Views

how can I display 245276777556527592946 in scientific notation rounded to 13 significant digits?

Published on 23 Feb 2026 - 7:40

score 125 · Answer 10 · 2026-03-28 07:53:36

125

Views

Given just a $4$-distinct-digit number. What are the odds that randomly chosen number has digit $1$ and digit $2$?

Published on 28 Mar 2026 - 7:53

score 333 · Answer 11 · 2020-05-22 06:47:37

333

Views

Sum of digits of sum of digits of powers of 12345

Published on 22 May 2020 - 6:47

score 324 · Answer 12 · 2020-05-25 19:27:56

324

Views

Doesn't $0.\overline9=1$ lead to consequences like $a-0.\overline01=a$ and $2=1.\overline931415926$?

Published on 25 May 2020 - 19:27

score 74 · Answer 13 · 2020-05-29 08:50:12

74

Views

digit product is $20$, digit sum is $12$, find the least number

Published on 29 May 2020 - 8:50

score 183 · Answer 14 · 2020-05-30 01:16:30

183

Views

27 and 37 as repeating decimals

Published on 30 May 2020 - 1:16

score 228 · Answer 15 · 2020-06-02 00:14:14

228

Views

Impossible to double an integer by moving a the initial digit to last

Published on 02 Jun 2020 - 0:14

List Question

real number and decimal expansions

Number equal to the product of its digits

What does it mean that two numbers are within two decimal places of each other?

Why $c$ closed to $-2\times10^n$ in $(1-c^2)^3+(c^3+10^nc^2-1)^3+(10^n c^2-1)^3=n$ for $n >1$?

Identifying a number is an integer, fraction or decimal.

Prove that for an integer n larger than or equal to 2, the period for the decimal expression of the rational number $\frac{1}{n}$ is at most n -1.

Why the first $x$ decimal places of $(5+\sqrt{26})^{x}$ are following a pattern?

Question concerning a product of digits algorithm

how can I display 245276777556527592946 in scientific notation rounded to 13 significant digits?

Given just a $4$-distinct-digit number. What are the odds that randomly chosen number has digit $1$ and digit $2$?

Sum of digits of sum of digits of powers of 12345

Doesn't $0.\overline9=1$ lead to consequences like $a-0.\overline01=a$ and $2=1.\overline931415926$?

digit product is $20$, digit sum is $12$, find the least number

27 and 37 as repeating decimals

Impossible to double an integer by moving a the initial digit to last

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