Cody

# Magic Numbers III

Curated by : goc3

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Created by: G K

Tags math

1

42

#### Problem 1673. Pandiagonal Prime Magic Square Verification

Created by: Richard Zapor

0

11

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

Created by: Richard Zapor

1

6

#### Problem 1826. Find vampire numbers

Created by: Andrew Newell

9

139

#### Problem 1804. Fangs of a vampire number

Created by: Andrew Newell

4

57

#### Problem 1825. Find all vampire fangs

Created by: Andrew Newell

2

41

Created by: Ted

0

38

#### Problem 2319. Pandigital number n°1 (Inspired by Project Euler 32)

Created by: Jean-Marie Sainthillier

1

56

#### Problem 2320. Pandigital number n°2 (Inspired by Project Euler 32)

Created by: Jean-Marie Sainthillier

2

36

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

Created by: Jean-Marie Sainthillier

1

25

#### Problem 2721. Pandigital Factors (Based on Euler 491)

Created by: James

1

25

#### Problem 2491. Dudeney Numbers: Numbers which are the cube of their decimal sum

Created by: Peter Cook

1

33

#### Problem 2492. Factorions: Numbers that equal the sum of the factorials of their digits

Created by: Peter Cook

1

34

#### Problem 2838. Optimum Egyptian Fractions

Created by: Jan Orwat

0

6

Created by: Ned Gulley

Tags primes

6

21

#### Problem 1672. Leftovers? Again?!

Created by: James

2

10

#### Recent Activity

 on 3 Oct 2020 at 18:44 on 3 Oct 2020 at 18:14 on 3 Oct 2020 at 17:32 on 3 Oct 2020 at 17:29 on 29 Sep 2020 at 21:01

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