Cody

Problems

1 – 50 of 84
Problem Title
Likes
Solvers
Difficulty

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

53

4073

Problem 64. The Goldbach Conjecture, Part 2

Created by: Cody Team

Tags primes

12

1423

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes, poor_test_suite

15

941

Problem 241. Project Euler: Problem 7, Nth prime

Created by: Doug Hull

Tags primes, projecteuler

11

577

Problem 44305. 5 Prime Numbers

Created by: goc3

Tags prime, primes, string

7

399

Problem 659. How long is the longest prime diagonal?

Created by: Ned Gulley

Tags primes, spiral, diagonal

11

345

Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

2

288

Problem 1375. select the primes of a vector

Created by: S AY

Tags primes, test, poor_test_suite

3

246

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

1

225

Problem 43269. Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

6

190

Problem 2910. Mersenne Primes vs. All Primes

Created by: goc3

Tags primes, comparison, powers

2

178

Problem 365. Numbers with prime factors 2, 3 and 5.

Created by: elias GR

Tags primes, factors

3

176

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

Created by: James

Tags primes, projecteuler, circular reasoning

6

149

Problem 248. Twins in a Window

Created by: Ned Gulley

Tags primes

2

128

Problem 2411. Largest Prime Number

Created by: Vinod Sudheesh

Tags primes

0

106

Problem 2340. Numbers spiral diagonals (Part 1)

Created by: Jean-Marie Sainthillier

Tags primes, project euler, spiral

2

101

Problem 2337. Sum of big primes without primes

Created by: Jean-Marie Sainthillier

Tags primes, project euler, eratosthenes

1

93

Problem 42513. Is it prime?

Created by: Azhar

Tags primes, basic matlab, basics

5

92

Problem 3020. Prime Letters = Removing

Created by: Gareth Thomas

Tags primes

0

74

Problem 42483. Give prime Numbers upto n

Created by: Manish Kapgate

Tags primes

0

70

Problem 2342. Numbers spiral diagonals (Part 2)

Created by: Jean-Marie Sainthillier

Tags primes, project euler, spiral

2

66

Problem 2335. Find the number that has most primes those less than it

Created by: Huy

Tags primes, vector

0

58

Problem 1298. P-smooth numbers

Created by: Richard Zapor

Tags primes, find, mod

1

56

Problem 44284. Given a number N, find the smallest prime P>N

Created by: AMITAVA BISWAS

Tags primes

1

53

Problem 42749. Find the nearest prime

Created by: Pooja Narayan

Tags math, primes

1

52

Problem 43085. Primes Checker

Created by: Jamil Kasan

Tags primes, variable input

8

51

Problem 42704. prime to each other

Created by: George-Felix Leu

Tags primes

1

47

Problem 42914. Counting the Grand Primes

Created by: John D'Errico

Tags prime, primes, intersect

3

35

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

Created by: yurenchu

Tags primes, goldbach conjecture

3

34

Problem 44861. Ratio between sums of prime and non-prime numbers

Created by: Jesús Zambrano

Tags primes, ratio

1

29

Problem 43087. Move if I am Optimus Prime

Created by: Jamil Kasan

Tags primes, jokes

7

28

Problem 44266. Sort the prime numbers in each row of a matrix

Created by: Loris Chavée

Tags primes, sorting, matrix

1

27

Problem 44862. Ratio between sum of primes and sum of factors

Created by: Jesús Zambrano

Tags primes, factors, ratio

0

25

Problem 44098. Find my secret function I

Created by: Said BOUREZG

Tags primes

2

25

Problem 1394. Prime Ladders

Created by: Ned Gulley

Tags primes

7

25

Problem 46624. List the emirps

Created by: ChrisR

Tags sequences, primes

2

25

Problem 44099. Find my secret function II

Created by: Said BOUREZG

Tags primes

1

20

Problem 46047. Identify Wagstaff primes

Created by: ChrisR

Tags primes

2

20

Problem 1761. Primes Faster for Large N

Created by: Richard Zapor

Tags primes, find, logical

1

18

Problem 47798. Check if the input is a balanced prime

Created by: Mehmet OZC

Tags primes, number theory, balanced prime

1

16

Problem 45964. Compute the nth Pythagorean prime

Created by: ChrisR

Tags primes, pythagoras, number theory

0

14

Problem 47803. Check if the input is a strong prime

Created by: Mehmet OZC

Tags primes, number theory, strong prime

0

14

Problem 46054. Count trailing zeros in a primorial

Created by: ChrisR

Tags primes, number theory, primorial

3

13

Problem 47808. Check if the input is an interprime

Created by: Mehmet OZC

Tags primes, number theory, interprime

0

13

Problem 46848. Modulo of sum of square of first n primes with 24

Created by: Mayank Bajpai

Tags primes, modulo, linear pattern

2

12

Problem 50038. Number Puzzles - 014

Created by: Doddy Kastanya

Tags primes, puzzles

1

11

Problem 47793. Find the smallest prime with n inside

Created by: ChrisR

Tags primes, strings, sequence

2

11

Problem 1763. Primes for Large N: 2^30, System Memory Limit

Created by: Richard Zapor

Tags primes, logical, memory management

1

11

Problem 45367. Sieve of Eratosthenes - 02

Created by: Asif Newaz

Tags primes, sequence, algorithm

1

11

Problem 46046. Determine whether a number is a cluster prime

Created by: ChrisR

Tags primes, number theory

2

11
1 – 50 of 84