Cody

Problems

1 – 16 of 16
Problem Title
Likes
Solvers
Difficulty

Problem 2736. Pernicious Anniversary Problem

Created by: Jan Orwat

Tags easy, sequences, oeis

12

769

Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

3

401

Problem 44230. I'm going to enjoy watching you calculate, Mr Anderson

Created by: James

Tags number theory, phone numbers, agent smith

2

33

Problem 44384. Find the nearest prime number

Created by: Matthew Eicholtz

Tags prime numbers, cody5

6

589

Problem 44385. Extra safe primes

Created by: Matthew Eicholtz

Tags prime numbers, cody5, safe prime

11

691

Problem 2337. Sum of big primes without primes

Created by: Jean-Marie Sainthillier

Tags primes, project euler, eratosthenes

1

123

Problem 3016. Twin Primes

Created by: goc3

Tags prime, integer, sequence

1

52

Problem 1204. Prime Time

Created by: James

Tags prime time, specific

2

60

Problem 44403. Goldbach's marginal conjecture - Write integer as sum of three primes

Created by: yurenchu

Tags primes, goldbach conjecture

3

43

Problem 2910. Mersenne Primes vs. All Primes

Created by: goc3

Tags primes, comparison, powers

4

295

Problem 2595. Polite numbers. Politeness.

Created by: Jan Orwat

Tags number theory, oeis

6

124

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

54

4418

Problem 64. The Goldbach Conjecture, Part 2

Created by: Cody Team

Tags primes

15

1616

Problem 1672. Leftovers? Again?!

Created by: James

Tags leftovers, modulo

3

17

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

16

1249

Problem 1095. Circular Primes (based on Project Euler, problem 35)

Created by: James

Tags primes, projecteuler, circular reasoning

7

258
1 – 16 of 16