New posts in Decimal Expansion

Detecting that a fraction is a repeating decimal

Convention of digit grouping after decimal point

How many digits does $2^{1000}$ contain?

Find The Last 3 digits of the number $2003^{2002^{2001}}$

How do we prove that $\lfloor0.999\cdots\rfloor = \lfloor 1 \rfloor$?

What is special about the numbers 9801, 998001, 99980001 ..?

The last two digits of $9^{9^9}$

How can I prove that all rational numbers are either terminating decimal or repeating decimal numerals?

Proof that the real numbers are countable: Help with why this is wrong

How come the number $N!$ can terminate in exactly $1,2,3,4,$ or $6$ zeroes but never $5$ zeroes?