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) 19 hours and 32 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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