List questions from decimal-expansion

Published on 18 Feb 2014 - 18:35

1.8k

Views

How to round $ 0.03446$ to three decimal places?

Published on 18 Feb 2014 - 18:51

158

Views

What is the last digit of this expression: $4^{2^1} + 4^{2^2} + 4^{2^3} + ...+ 4^{2^{2013}}$

Published on 20 Feb 2014 - 21:33

111

Views

For which $n \in \mathbb{Z^+}$ is $(4n+9)/(2n^2+7n+6)$ a terminating decimal?

Published on 21 Feb 2014 - 21:25

759

Views

Rudin: Supremum of Finite Decimals

Published on 23 Feb 2014 - 17:02

164

Views

Appear the digits in the number $3^{3^{3^3}}$ approximately equally often?

Published on 26 Mar 2026 - 23:09

9.8k

Views

Proof of divisibility by 7 rules

Published on 28 Feb 2014 - 5:16

9.4k

Views

Numbers of $5$ digits that have at least one of the digits repeated more than one time?

Published on 02 Mar 2014 - 0:44

74

Views

Metric for precision of a decimal number

Published on 03 Mar 2014 - 23:08

556

Views

Computing the last non-zero digit of ${1027 \choose 41}$?

Published on 04 Mar 2014 - 1:56

2.7k

Views

Last digits of power towers $7$, $7^7$, $7^{7^7}$, $7^{7^{7^7}}$, ... don't change, and generalisation

Published on 26 Mar 2026 - 23:10

32

Views

Give an expression to the decimal number given after manipulations

Published on 09 Apr 2017 - 15:12

7.8k

Views

Show that there are infinitely many powers of two starting with the digit 7

Published on 12 Apr 2017 - 4:07

298

Views

Cardinality & Schroder-Bernstein Theorem

Published on 17 Apr 2017 - 12:44

270

Views

How many powers of $2$ have only $0$ or powers of $2$ as digits?

Published on 26 Mar 2026 - 12:48

List Question

What Will Happen Without Decimal Expansion?

How to round $ 0.03446$ to three decimal places?

What is the last digit of this expression: $4^{2^1} + 4^{2^2} + 4^{2^3} + ...+ 4^{2^{2013}}$

For which $n \in \mathbb{Z^+}$ is $(4n+9)/(2n^2+7n+6)$ a terminating decimal?

Rudin: Supremum of Finite Decimals

Appear the digits in the number $3^{3^{3^3}}$ approximately equally often?

Proof of divisibility by 7 rules

Numbers of $5$ digits that have at least one of the digits repeated more than one time?

Metric for precision of a decimal number

Computing the last non-zero digit of ${1027 \choose 41}$?

Last digits of power towers $7$, $7^7$, $7^{7^7}$, $7^{7^{7^7}}$, ... don't change, and generalisation

Give an expression to the decimal number given after manipulations

Show that there are infinitely many powers of two starting with the digit 7

Cardinality & Schroder-Bernstein Theorem

How many powers of $2$ have only $0$ or powers of $2$ as digits?

Trending Questions

Popular # Hahtags

Popular Questions