Tag: elementary-number-theory
- Number Theory – Finite Set of Distinct Naturals Whose Reciprocals Sum to 1
- Group Theory – Elementary Proof of $(\mathbb{Z}/16 \mathbb{Z})^{\times} \cong C_4 \times C_2$
- Number Theory – How Many Numbers of Form n = aaaaaaaaabcd are Divisible by 45
- Number Theory – Analyze Sequences of the Form A(n) = A(A(n-1) mod n)^2
- Perfect Cubes with Digit-Average at Least 7.5 – Finding and Proving
- Expressing 2/n as Sum of Two Unit Fractions – Methods and Examples
- Number Theory – Dense Subset of Rationals Without Midpoints
- Number Theory – Combinatorics Style Problems
- Sequences and Series – Solving Infinite Sequence of Integers Problem
- Proof relating to square root and floor function