Newbetuts

Why do divisions like 1/98 and 1/998 give us numbers continuously being multiplied by two each time in decimal form?

Hopping to infinity along a string of digits

Perfect squares formed by two perfect squares like $49$ and $169$.

Regularities when $n$ and $2n$ contain the same digits

nonzero digits in decimal representation of $\sqrt{2}$

Can I guess an irrational number formula from its digits?

The $2013$th digit of $1234567891011213141516\ldots$

Decimal representation of a multiple entirely consists of odd digits [duplicate]

Question on Concatenation of Prime Numbers

Why is 0.3 to power of 2 0.09 and not 0.9? [closed]

Does π start with two identical decimal sequences?

A 10-digit number whose $n$th digit gives the number of $(n-1)$s in it

Is it an abuse of notation to omit the leading zero in a decimal less than 1?

Prove that 2.101001000100001... is an irrational number.

Palindromes in multiple bases

Is there any proof that there are only 3 so-called "neon numbers"?

New posts in decimal-expansion

How many zeroes are there at the end of the sum $1^1 + 2^2 + 3^3 + \cdots+ 100^{100}$?

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

How many Unique numbers?

Finding the last two digits of a number by binomial theorem

Why do divisions like 1/98 and 1/998 give us numbers continuously being multiplied by two each time in decimal form?

Hopping to infinity along a string of digits

Perfect squares formed by two perfect squares like $49$ and $169$.

Regularities when $n$ and $2n$ contain the same digits

nonzero digits in decimal representation of $\sqrt{2}$

Can I guess an irrational number formula from its digits?

The $2013$th digit of $1234567891011213141516\ldots$

Decimal representation of a multiple entirely consists of odd digits [duplicate]

Question on Concatenation of Prime Numbers

Why is 0.3 to power of 2 0.09 and not 0.9? [closed]

Does π start with two identical decimal sequences?

A 10-digit number whose $n$th digit gives the number of $(n-1)$s in it

Is it an abuse of notation to omit the leading zero in a decimal less than 1?

Prove that 2.101001000100001... is an irrational number.

Palindromes in multiple bases

Is there any proof that there are only 3 so-called "neon numbers"?