# New post in Elementary-number-theory

July 21st, 2020

August 1st, 2022

August 1st, 2022

## How to solve $x^2+4x+2 \equiv 0 \pmod{49}$

December 8th, 2020

## Number theory question from today's Pre - RMO

December 18th, 2020

## Solve the following congruence: 2x ≡ 7 (mod 17)

October 24th, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

## A number relatively prime to n in the integers mod n produces all the elements

October 30th, 2020

August 7th, 2020

August 1st, 2022

## Show that $51| 10^{32n+9} - 7$

November 11th, 2020

May 3rd, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

## conversion of hexadecimal to decimal

January 16th, 2020

August 1st, 2022

## Negative coefficients and Bezout's identity

November 11th, 2020

August 1st, 2022

## What is the smallest positive integer in the set { $24x+60y+2000z : x,y,z \in \Bbb Z$ }

September 18th, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

July 19th, 2021