List questions from number-systems | MathQa

Does the Look and Say sequence have terms with odd number of digits? (also for other bases)

Published on 29 Dec 2024 - 23:45

Last digit of $1234 \cdot 5678$

Published on 12 Jan 2025 - 18:19

permutations of binary sequences

Published on 12 Jan 2025 - 23:35

Is there any basis transformation under which all irrational numbers are rationals and vice-versa?

Published on 29 Dec 2024 - 18:58

Can all natural numbers be represented as palindromes in some base $b$?

Published on 29 Dec 2024 - 16:38

At what base is square root of 120 natural number

Published on 30 Dec 2024 - 14:15

Why are every number (integer) exactly divisible by 5 in decimal number system but not in binary number system?

Published on 30 Dec 2024 - 10:08

binary divison with remainder

Published on 12 Jan 2025 - 18:31

Are there any numeral systems that start with 1x prefix?

Published on 30 Dec 2024 - 2:29

Numbers $n$ whose prime factors are $2$ and $5$ if and only if $\sum_{k=1}^{rad(n)}\mu(k)k=0$?

Published on 12 Jan 2025 - 23:51