19 items in this folder.
Status




Name

Type

Last modified





Apply extended Euclidean algorithm to find gcd

question

20 Nov 2019, 2:51 p.m.

Doesn't work




Factorise four numbers

question

20 Nov 2019, 2:51 p.m.

Doesn't work




Factorise numbers into products of prime powers

question

20 Nov 2019, 2:51 p.m.





Find $\mu(n)$, $\sigma(n)$, $\tau(n)$, $\phi(n)$

question

20 Nov 2019, 2:51 p.m.





Find all numbers with given value of $\phi(n)$

question

20 Nov 2019, 2:51 p.m.





Find all solutions of a quadratic in Z_n, given one

question

20 Nov 2019, 2:51 p.m.





Find n such that $\phi(n)$ is the given value

question

20 Nov 2019, 2:51 p.m.

Needs to be tested




Find n such that $\sigma(n)$ is the given number

question

20 Nov 2019, 2:51 p.m.





Find the smallest $n$ with given number of divisors

question

20 Nov 2019, 2:51 p.m.





Number theory and cryptography

exam

20 Nov 2019, 2:50 p.m.





Perform arithmetic in Z_n

question

20 Nov 2019, 2:51 p.m.

Ready to use




Simplify integers and rationals in Z_n

question

20 Nov 2019, 2:51 p.m.





Solve a pair of congruences

question

20 Nov 2019, 2:51 p.m.





Solve a pair of congruences

question

20 Nov 2019, 2:51 p.m.

Ready to use




Solve an equation in modular arithmetic

question

20 Nov 2019, 2:51 p.m.

Has some problems




Solve congruence in given range

question

20 Nov 2019, 2:51 p.m.





Solve three congruences using Chinese Remainder Theorem

question

20 Nov 2019, 2:51 p.m.

Ready to use




Solve three congruences with the Chinese Remainder Theorem

question

20 Nov 2019, 2:51 p.m.

Has some problems




True/false statements on modular arithmetic

question

20 Nov 2019, 2:51 p.m.

There's nothing in this folder at the moment.