Problems

1 – 42 of 42

Problem Title Likes Solvers

The Goldbach Conjecture

Created by: Cody Team

Tags primes

3065

The Goldbach Conjecture, Part 2

Created by: Cody Team

Tags primes

848

Prime factor digits

Created by: Cody Team

Tags primes, poor_test_suite

492

5 Prime Numbers

Created by: goc3

Tags five, prime, primes

332

Project Euler: Problem 7, Nth prime

Created by: Doug Hull

Tags projecteuler, primes

299

How long is the longest prime diagonal?

Created by: Ned Gulley

Tags asee, primes, poor_problem_statement

260

select the primes of a vector

Created by: S AY

Tags primes, poor_test_suite, test

183

Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

155

Largest Twin Primes

Created by: Des Mc Manus

Tags primes

119

Twins in a Window

Created by: Ned Gulley

Tags primes

106

Numbers with prime factors 2, 3 and 5.

Created by: elias GR

Tags factors, primes

Largest Prime Number

Created by: Vinod Sudheesh

Tags primes

Is it prime?

Created by: Azhar

Tags community, primes, basics

Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

Give prime Numbers upto n

Created by: Manish Kapgate

Tags primes

Mersenne Primes vs. All Primes

Created by: goc3

Tags primes, mersenne primes, comparison

Prime Letters = Removing

Created by: Gareth Thomas

Tags primes

Circular Primes (based on Project Euler, problem 35)

Created by: James

Tags projecteuler, primes, circular reasoning

Number of primes

Created by: Abhishek Jain

Tags primes, poor_test_suite

Find the number that has most primes those less than it

Created by: Huy

Tags primes, vector

Numbers spiral diagonals (Part 1)

Created by: Jean-Marie Sainthillier

Tags project euler, primes, spiral

Find the nearest prime

Created by: Pooja Narayan

Tags primes, math

Primes Checker

Created by: Jamil Kasan

Tags primes, variable input

Tags primes

Given a number N, find the smallest prime P>N

Created by: AMITAVA BISWAS

Tags primes

Sum of big primes without primes

Created by: Jean-Marie Sainthillier

Tags project euler, primes, eratosthenes

Counting the Grand Primes

Created by: John D'Errico

Tags primes, prime, twin

Move if I am Optimus Prime

Created by: Jamil Kasan

Tags primes, jokes

Find my secret function I

Created by: Said BOUREZG

Tags primes

Sort the prime numbers in each row of a 3x3 matrix

Created by: Loris Chavée

Tags sorting, primes, matrix

Find my secret function II

Created by: Said BOUREZG

Tags primes

Primes Faster for Large N

Created by: Richard Zapor

Tags primes, true, find

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

Created by: yurenchu

Tags goldbach conjecture, primes

Ratio between sum of primer numbers and non-prime numbers

Created by: Jesús Zambrano

Tags primes, ratio

Prime Ladders

Created by: Ned Gulley

Tags primes

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

Created by: Richard Zapor

Tags primes, logical, segments

Ratio between sum of primes and sum of factors

Created by: Jesús Zambrano

Tags primes, factors, ratio

Make a Pandiagonal Prime Magic Square: 11 x 11

Created by: Richard Zapor

Tags primes, pandiagonal, magic square

Given a base n, find the y values less or equal than 100(without 1), such that they will never produce a periodic number if we divide any whole number between some of them

Created by: Fabio Squizzato

Tags linear algebra, primes, factor

Prime Sequences: AP-k Minimum Final Value

Created by: Richard Zapor

Tags primes, isprime, primorial

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