Cody

Trial software

Problems

1 – 10 of 10

Problem Title Likes Solvers

Smith numbers

Created by: Sky Sartorius

Tags factors, sum

2

142

Numbers with prime factors 2, 3 and 5.

Created by: elias GR

Tags factors, primes

1

87

Find vampire numbers

Created by: Andrew Newell

Tags number theory, factors

5

80

Calculate Euler's phi function

Created by: Freddy

Tags basic matlab, factors, number theory

0

44

Fangs of a vampire number

Created by: Andrew Newell

Tags number theory, factors

3

36

Matrix of Multiplication Facts

Created by: James

Tags factors, matrix, elementary_school_math

7

30

Find all vampire fangs

Created by: Andrew Newell

Tags number theory, factors

1

25

How brilliant are you?

Created by: James

Tags brilliant, number theory, factors

3

20

Repopulate the City

Created by: Ned Gulley

Tags factors

3

17

Ratio between sum of primes and sum of factors

Created by: Jesús Zambrano

Tags primes, factors, ratio

0

5

1 – 10 of 10

Trial software