Cody

Problems

1 – 22 of 22
Problem Title
Likes
Solvers
Difficulty

Problem 1673. Pandiagonal Prime Magic Square Verification

Created by: Richard Zapor

Tags prime, magic square, pandiagonal

0

29

Problem 45201. Check if integer is a prime number

Created by: David Motson

Tags prime

0

57

Problem 44645. Prime numbers between a , b.

Created by: Majid Farzaneh

Tags basic, prime

1

69

Problem 42317. De-primed

Created by: goc3

Tags prime

1

121

Problem 54119. Create the Ulam spiral

Created by: Hugo

Tags prime, matrix

0

13

Problem 44699. Prime Product

Created by: Aamod Garg

Tags prime, vector, multiply

1

31

Problem 3016. Twin Primes

Created by: goc3

Tags prime, integer, sequence

1

76

Problem 45794. *Prime number check 2 (in construction)

Created by: Anirban Pal

Tags prime, factor, divisors

0

27

Problem 42454. Divisible by n, prime divisors (including powers)

Created by: goc3

Tags prime, string, precision

0

87

Problem 45342. Sieve of Eratosthenes

Created by: Asif Newaz

Tags prime, numbers, number theory

2

16

Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

3

635

Problem 3001. Sphenic number sequence

Created by: goc3

Tags prime, number, factor

2

60

Problem 42509. Divisible by n, Truncated-number Divisors

Created by: goc3

Tags prime, string, precision

0

71

Problem 44305. 5 Prime Numbers

Created by: goc3

Tags prime, primes, string

7

430

Problem 42510. Divisible by n, Composite Divisors

Created by: goc3

Tags prime, string, precision

0

68

Problem 42453. Divisible by n, prime vs. composite divisors

Created by: goc3

Tags prime, string, precision

1

106

Problem 3003. Mobius function

Created by: goc3

Tags prime, number, factor

4

47

Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

4

613

Problem 42914. Counting the Grand Primes

Created by: John D'Errico

Tags prime, primes, intersect

3

43

Problem 1722. Find the next prime number

Created by: Chris E.

Tags prime

4

495

Problem 42508. Divisible by n, prime divisors from 20 to 200

Created by: goc3

Tags prime, string, precision

0

61

Problem 42455. Divisible by n, prime divisors - 11, 13, 17, & 19

Created by: goc3

Tags prime, string, precision

2

65
1 – 22 of 22