Categories
Tags
Elementary-number-theory
New post in Elementary-number-theory
Prove that $n^2 + 1$ is not a multiple of $6$ for any positive integer $n$
July 21st, 2020
elementary-number-theory
modular-arithmetic
How can I solve $4x + 51y = 9$ using congruences?
August 1st, 2022
modular-arithmetic
elementary-number-theory
congruences
Are all numbers rational?
August 1st, 2022
rational-numbers
elementary-number-theory
definition
irrational-numbers
How to solve $ x^2+4x+2 \equiv 0 \pmod{49}$
December 8th, 2020
elementary-number-theory
modular-arithmetic
diophantine-equations
Number theory question from today's Pre - RMO
December 18th, 2020
divisibility
elementary-number-theory
Solve the following congruence: 2x ≡ 7 (mod 17)
October 24th, 2020
modular-arithmetic
elementary-number-theory
discrete-mathematics
difference between 2 prime numbers
August 1st, 2022
number-theory
elementary-number-theory
Extension of Fermat's little theorem with Carmichael numbers
August 1st, 2022
elementary-number-theory
cryptography
prime-numbers
Suppose a, b and n are positive integers. Prove that (a^n) | (b^n) if and only if a | b.
August 1st, 2022
divisibility
elementary-number-theory
A number relatively prime to n in the integers mod n produces all the elements
October 30th, 2020
elementary-number-theory
Formula For Finding the Next Near Consecutive Perfect Square
August 7th, 2020
terminology
elementary-number-theory
algebra-precalculus
Splitting sum into two sums
August 1st, 2022
arithmetic
elementary-number-theory
Show that $51| 10^{32n+9} - 7$
November 11th, 2020
elementary-number-theory
The product of any two even integers is a multiple of 4
May 3rd, 2020
elementary-number-theory
How many coprime ordered pairs are there up to $N$?
August 1st, 2022
combinatorics
totient-function
probability-theory
elementary-number-theory
Let m and n be positive integers with (m,n) = 1. Prove that each divisor d > 0 of m*n can be written uniquely
August 1st, 2022
elementary-number-theory
number-theory
Show that the square of any odd positive integer is of the type 6q or 6q+ 3 or 6q + 5 where q is some integer
August 1st, 2022
modular-arithmetic
elementary-number-theory
If integers $a$ and $b$ are not both zero, then $\gcd(a,b)=\gcd(a-b,b)$
August 1st, 2022
proof-writing
elementary-number-theory
counting total factors, given multiplicity of all prime factors
August 1st, 2022
combinatorics
elementary-number-theory
conversion of hexadecimal to decimal
January 16th, 2020
elementary-number-theory
Getting primitive roots of 14
August 1st, 2022
elementary-number-theory
Negative coefficients and Bezout's identity
November 11th, 2020
diophantine-equations
elementary-number-theory
Definition of period of a decimal representation of a number
August 1st, 2022
elementary-number-theory
decimal-expansion
What is the smallest positive integer in the set { $24x+60y+2000z : x,y,z \in \Bbb Z$ }
September 18th, 2020
elementary-number-theory
Suppose that a cube is inscribed in a sphere of radius one. What is the volume of the cube? my reasoning vs answer
August 1st, 2022
vector-spaces
contest-math
elementary-number-theory
Solve linear $\,ax + b = 0$ in $Z_N$
August 1st, 2022
modular-arithmetic
elementary-number-theory
Use Fermat's theorem to verify that $17\mid(11^{104})-1$
August 1st, 2022
elementary-number-theory
Complete Residue System Proof - n elements
August 1st, 2022
elementary-number-theory
Using Fermat's little theorem to find remainders.
August 1st, 2022
elementary-number-theory
congruences
Highschool level number theory book recommendations
July 19th, 2021
elementary-number-theory
reference-request
book-recommendation
←
1
2
3
4
5
6
7
8
9
…
125
126
→