Cody

Problems

1 – 8 of 8
Problem Title
Likes
Solvers
Difficulty

Problem 2051. is the number happy?

Created by: Ted

Tags math, happy number

0

54

Problem 1804. Fangs of a vampire number

Created by: Andrew Newell

Tags factors, number theory

4

73

Problem 1697. Make a Pandiagonal Prime Magic Square: 11 x 11

Created by: Richard Zapor

Tags primes, magic square, pandiagonal

2

10

Problem 2838. Optimum Egyptian Fractions

Created by: Jan Orwat

Tags recursion, optimization, egyptian fraction

0

12

Problem 1477. Champernowne Constant

Created by: G K

Tags math

2

59

Problem 1672. Leftovers? Again?!

Created by: James

Tags leftovers, modulo

3

17

Problem 2323. Pandigital number n°3 (Inspired by Project Euler 32)

Created by: Jean-Marie Sainthillier

Tags project euler, pandigital number

1

28

Problem 1394. Prime Ladders

Created by: Ned Gulley

Tags primes

8

30
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