Question

Finding the period of decimal

score 204 · Answer 1 · 2026-03-20 11:36:00

204

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Finding the period of decimal

Published on 20 Mar 2026 - 11:36

score 135 · Answer 2 · 2026-03-20 02:25:36

135

Views

Which sets of base 10 digits have the property that, for every $n$, there is a $n$-digit number made up of these digits that is divisible by $5^n$?

Published on 20 Mar 2026 - 2:25

score 99 · Answer 3 · 2026-03-17 10:35:51

99

Views

Is a irrational number still irrational when we apply some mapping to its decimal representation?

Published on 17 Mar 2026 - 10:35

score 12.5k · Answer 4 · 2026-03-21 11:47:44

12.5k

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Why the square root of any decimal number between 0 and 1 always come out to be greater than the number itself?

Published on 21 Mar 2026 - 11:47

score 66 · Answer 5 · 2026-03-17 15:55:00

66

Views

Why does the decimal representation of (10^x * 10^y) always suffix the same representation in binary?

Published on 17 Mar 2026 - 15:55

score 77 · Answer 6 · 2026-03-20 08:52:49

77

Views

Digit sum of $x$ consisting of only 3,4,5,6 = digit sum of $2x$

Published on 20 Mar 2026 - 8:52

score 45 · Answer 7 · 2026-03-22 13:39:15

45

Views

How many 3 digits numbers are equal to the sum of their first digit plus their second digit squared plus the third cubed?

Published on 22 Mar 2026 - 13:39

score 1.3k · Answer 8 · 2026-03-22 10:50:40

1.3k

Views

Is it possible to determine if a number is infinitely long?

Published on 22 Mar 2026 - 10:50

score 384 · Answer 9 · 2026-03-20 10:26:24

384

Views

What is the logic behind the octal to decimal conversion using the expansion method?

Published on 20 Mar 2026 - 10:26

score 140 · Answer 10 · 2026-03-20 04:32:18

Is the real number whose $n^{\rm th}$ digit after the decimal point in decimal representation is the leading digit of $2^n$ a rational number?

score 66 · Answer 11 · 2026-03-19 16:43:34

66

Views

How many digits occur in the $100^{th}$ term of the following recurrence?

Published on 19 Mar 2026 - 16:43

score 79 · Answer 12 · 2026-03-22 12:44:12

79

Views

Calculate $0,2\overline{91}$ using geometric series

Published on 22 Mar 2026 - 12:44

score 45 · Answer 13 · 2026-03-25 01:14:53

45

Views

Assigning numbers to triplets

Published on 25 Mar 2026 - 1:14

score 178 · Answer 14 · 2026-03-25 01:22:36

178

Views

Is $0\bar{.9}$ in $[0,1)$?

Published on 25 Mar 2026 - 1:22

score 189 · Answer 15 · 2026-03-25 01:15:26

189

Views

Confused about Pi & Normal Numbers?

Published on 25 Mar 2026 - 1:15

List Question

Finding the period of decimal

Which sets of base 10 digits have the property that, for every $n$, there is a $n$-digit number made up of these digits that is divisible by $5^n$?

Is a irrational number still irrational when we apply some mapping to its decimal representation?

Why the square root of any decimal number between 0 and 1 always come out to be greater than the number itself?

Why does the decimal representation of (10^x * 10^y) always suffix the same representation in binary?

Digit sum of $x$ consisting of only 3,4,5,6 = digit sum of $2x$

How many 3 digits numbers are equal to the sum of their first digit plus their second digit squared plus the third cubed?

Is it possible to determine if a number is infinitely long?

What is the logic behind the octal to decimal conversion using the expansion method?

Is the real number whose $n^{\rm th}$ digit after the decimal point in decimal representation is the leading digit of $2^n$ a rational number?

How many digits occur in the $100^{th}$ term of the following recurrence?

Calculate $0,2\overline{91}$ using geometric series

Assigning numbers to triplets

Is $0\bar{.9}$ in $[0,1)$?

Confused about Pi & Normal Numbers?

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