Cody

Problems

1 – 9 of 9
Problem Title
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Difficulty

Problem 1012. Determine if input is a perfect number

Created by: Binbin Qi

Tags mod sum, perfect

2

171

Problem 1407. Is it an Armstrong number?

Created by: Harish Maradana

Tags armstrong no

3

254

Problem 1008. Determine if input is a Narcissistic number

Created by: Binbin Qi

Tags mod floor

2

147

Problem 1298. P-smooth numbers

Created by: Richard Zapor

Tags primes, find, mod

1

67

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

2

385

Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

4

425

Problem 1082. Lychrel Number Test (Inspired by Project Euler Problem 55)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15

1

70

Problem 249. Project Euler: Problem 9, Pythagorean numbers

Created by: Doug Hull

Tags projecteuler

5

722

Problem 1477. Champernowne Constant

Created by: G K

Tags math

2

59
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