dominic
Hi :)

14 solved
16 created
7,000 points

Smallest 12345 prime

Description

A 12345 is a prime is a prime number which contains the digits 12345 (in that order).

A prime number is a number t...

1
Sum of Primes in Array

Description

A prime is an integer, greater than 1, which is divisible only by itself and 1.

For example the first 5 primes are...

3
Sum of Powers

Description

Given an array, a machine outputs the sum of every other digit to the power of the next digit.

For example:

Giv...

2
Product in Array

Description

The product of array [x, y, z] is equal to \(x \times y \times z\)

3
Sum in Array

Description

The sum of all numbers in array [x, y, x] is equal to x + y + z

11
Elevator

Description

An elevator is given an input code which it then uses to go up or down floors:

"^" = go up one floo...

9
Prime Fibonacci Sequence

Description

In the fibonacci sequence every number is the sum of the two preceding ones:
\(1, 1, 2, 3, 5, 8, 13, 21, 3...

2
Appending digits

Description

\(a\) is formed by appending the digit 1 to the front of an integer.

\(b\) is formed by appending the digi...

1
Relatively prime integers

Description

Two integers \(a\) and \(b\) are said to be relatively prime if the only positive integer that divides both...

1
Sum of primes

Description

A prime is an integer, greater than 1, which is divisible only by itself and 1.

For example the first 5 primes are: ...

4
Index of coincidence

Description

The index of coincidence provides a measure of how likely it is to draw two matching letters by randomly selecting tw...

1
Factorial

Description

The factorial of a non-negative integer n, denoted by n!, is the product of all po...

7
Collatz conjecture

Description

Start with any positive integer \(n\). Then each term is obtained from the previous term as follows: if the...

19
Caesar Cipher

Description

A caesar cipher is a substituion cipher in which each letter in the plaintext is replaced by a letter some fixed...

3
Coordinates

Description

Starting from the point (0,0) on a grid, you are given a set of instructions:

^ = Up one unit

v (lowercase v) =...

10
Ruth–Aaron pair

Description

A Ruth-Aaron pair consists of two consecutive integers (e.g. 714 and 715) for which the sums of the prime factors of ...

7
e^iπ+1=0
i'm a python beginner :)
25 solved
5 created
12,500 points
Profile
Arbitrar...
29 solved
4 created
14,500 points
Profile
Cameron
3 solved
0 created
1,500 points
Profile
Doshkey
Software Engineer http://www.doschke.name
36 solved
6 created
18,000 points
Profile
sarvar883
I love web development and I am learning javascript
12 solved
0 created
6,000 points
Profile
e^iπ+1=0
i'm a python beginner :)
25 solved
5 created
12,500 points
Profile
Joseph
0 solved
1 created
0 points
Profile
Arbitrar...
29 solved
4 created
14,500 points
Profile
sam
4 solved
0 created
2,000 points
Profile
Doshkey
Software Engineer http://www.doschke.name
36 solved
6 created
18,000 points
Profile