Project Euler II

Curated by : goc3

Average Problem Difficulty:

More problems inspired by Project Euler.

Community Group Solver

+50 points

Problem Title	Likes	Solvers
Problem 42935. Sums of cubes and squares of sums Created by: John D'Errico Tags integers, projecteuler, numbers	9	266
Problem 2337. Sum of big primes without primes Created by: Jean-Marie Sainthillier Tags primes, project euler, eratosthenes	3	141
Problem 42936. Project Euler: Problem 11, Largest product in a grid Created by: Riam Su Tags projecteuler	5	99
Problem 44732. Highly divisible triangular number (inspired by Project Euler 12) Created by: goc3 Tags series, triangle, projecteuler	2	118
Problem 2664. Divisors for big integer Created by: Jean-Marie Sainthillier Tags projecteuler, divisors	3	150
Problem 44733. Large Sum (inspired by Project Euler 13) Created by: goc3 Tags string, project euler, large number	2	87
Problem 42673. Longest Collatz Sequence Created by: Jean-Marie Sainthillier Tags project euler, collatz number	8	105
Problem 252. Project Euler: Problem 16, Sums of Digits of Powers of Two Created by: @bmtran (Bryant Tran) Tags project euler, big integer, digits	3	141
Problem 42938. Project Euler: Problem 18, Maximum path sum I Created by: Riam Su Tags projecteuler, euler	4	103
Problem 273. Recurring Cycle Length (Inspired by Project Euler Problem 26) Created by: @bmtran (Bryant Tran) Tags project euler, digits, decimals	3	131
Problem 2340. Numbers spiral diagonals (Part 1) Created by: Jean-Marie Sainthillier Tags primes, project euler, spiral	4	208
Problem 2342. Numbers spiral diagonals (Part 2) Created by: Jean-Marie Sainthillier Tags primes, project euler, spiral	4	156

FEATURED DISCUSSION

Primes and Rough Numbers, Basic ideas

What is a rough number? What can they be used...

John D'Errico in Tips & Tricks

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Recent Group Finishers51

Recent Activity

	Alexander Ross submitted Solution 14565898 to Problem 44732. Highly divisible triangular number (inspired by Project Euler 12) 6 hours and 53 minutes ago
	준혁 submitted Solution 14559824 to Problem 2664. Divisors for big integer on 25 Feb 2025 at 22:34
	Paul Bower submitted Solution 14551858 to Problem 273. Recurring Cycle Length (Inspired by Project Euler Problem 26) on 18 Feb 2025 at 16:35
	Paul Bower submitted Solution 14551858 to Problem 273. Recurring Cycle Length (Inspired by Project Euler Problem 26) on 18 Feb 2025 at 16:35
	Paul Bower submitted Solution 14551735 to Problem 42936. Project Euler: Problem 11, Largest product in a grid on 18 Feb 2025 at 14:19

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