# New post in Elementary-number-theory

August 1st, 2022

August 1st, 2022

August 1st, 2022

## Evaluate all the square roots of 4 mod 77.

January 14th, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

## Use mathematical induction to prove that any integer $n\ge2$ is either a prime or a product of primes.

February 20th, 2020

## Minimum number of moves to even out a row of brick piles

February 1st, 2020

August 1st, 2022

August 1st, 2022

August 1st, 2022

August 1st, 2022

June 9th, 2020

## Show that any natural number $n$ can be written on the form $n = 2^k \cdot m$

September 22nd, 2020

June 7th, 2020

April 21st, 2020

August 1st, 2022

## How to check for perfect numbers?

February 16th, 2020

March 18th, 2022

May 22nd, 2020

August 1st, 2022

## $\gcd(a,b) = \gcd(a, a+2b)$ where $a$ is an odd integer

October 24th, 2020

August 1st, 2022

August 1st, 2022

## Discuss the solution to 5x ≡ 8(mod 10)

February 8th, 2020

August 1st, 2022