Thang Nguyen

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1 – 50 of 168

Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

3

Solutions

150

Size

3

Solutions

150

Size

Problem 42510. Divisible by n, Composite Divisors

Created by: goc3

Tags prime, string, precision

3

Solutions

305

Size

3

Solutions

305

Size

Problem 42509. Divisible by n, Truncated-number Divisors

Created by: goc3

Tags prime, string, precision

2

Solutions

177

Size

2

Solutions

177

Size

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

Created by: goc3

Tags prime, string, precision

11

Solutions

532

Size

11

Solutions

532

Size

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

Created by: goc3

Tags prime, string, precision

6

Solutions

420

Size

6

Solutions

420

Size

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

Created by: goc3

Tags prime, string, precision

4

Solutions

75

Size

4

Solutions

75

Size

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

Created by: goc3

Tags prime, string, precision

2

Solutions

143

Size

2

Solutions

143

Size

Problem 42418. Divisible by 16

Created by: goc3

Tags string, precision, overflow

1

Solution

59

Size

1

Solution

59

Size

Problem 42417. Divisible by 15

Created by: goc3

Tags string, precision, overflow

1

Solution

109

Size

1

Solution

109

Size

Problem 42416. Divisible by 14

Created by: goc3

Tags string, precision, overflow

1

Solution

167

Size

1

Solution

167

Size

Problem 42415. Divisible by 13

Created by: goc3

Tags string, precision, overflow

1

Solution

139

Size

1

Solution

139

Size

Problem 42414. Divisible by 12

Created by: goc3

Tags string, precision, overflow

1

Solution

213

Size

1

Solution

213

Size

Problem 42413. Divisible by 11

Created by: goc3

Tags string, precision, overflow

2

Solutions

82

Size

2

Solutions

82

Size

Problem 42412. Divisible by 10

Created by: goc3

Tags string, precision, overflow

1

Solution

30

Size

1

Solution

30

Size

Problem 42411. Divisible by 9

Created by: goc3

Tags string, precision, overflow

1

Solution

54

Size

1

Solution

54

Size

Problem 42410. Divisible by 8

Created by: goc3

Tags string, precision, overflow

1

Solution

146

Size

1

Solution

146

Size

Problem 42409. Divisible by 7

Created by: goc3

Tags string, precision, overflow

2

Solutions

103

Size

2

Solutions

103

Size

Problem 42408. Divisible by 6

Created by: goc3

Tags string, precision, overflow

2

Solutions

122

Size

2

Solutions

122

Size

Problem 42407. Divisible by 5

Created by: goc3

Tags string, precision, overflow

1

Solution

39

Size

1

Solution

39

Size

Problem 42406. Divisible by 4

Created by: goc3

Tags string, precision, overflow

4

Solutions

143

Size

4

Solutions

143

Size

Problem 42405. Divisible by 3

Created by: goc3

Tags string, precision, overflow

1

Solution

54

Size

1

Solution

54

Size

Problem 42404. Divisible by 2

Created by: goc3

Tags string, precision, overflow

3

Solutions

62

Size

3

Solutions

62

Size

Problem 42340. Fibonacci Decomposition

Created by: Ned Gulley

Tags fibonacci

1

Solution

119

Size

1

Solution

119

Size

Problem 8057. (Linear) Recurrence Equations - Generalised Fibonacci-like sequences

Created by: Jan Orwat

Tags sequences, fibonacci, recurrence

6

Solutions

151

Size

6

Solutions

151

Size

Problem 44481. How many Fibonacci numbers?

Created by: Bob Tivnan

Tags integers, fibonacci, #easy

3

Solutions

127

Size

3

Solutions

127

Size

Problem 1946. Fibonacci-Sum of Squares

Created by: Chris Cleveland

Tags fibonacci, sum of squares

1

Solution

64

Size

1

Solution

64

Size

Problem 148. Factorize THIS, buddy

Created by: the cyclist

Tags easy prime, basic matlab

3

Solutions

71

Size

3

Solutions

71

Size

Problem 43269. Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

1

Solution

34

Size

1

Solution

34

Size

Problem 365. Numbers with prime factors 2, 3 and 5.

Created by: elias GR

Tags primes, factors

4

Solutions

81

Size

4

Solutions

81

Size

Problem 191. Proper Factors

Created by: @bmtran (Bryant Tran)

Tags proper factors

2

Solutions

35

Size

2

Solutions

35

Size

Problem 1066. Multiples of a Number in a Given Range

Created by: @bmtran (Bryant Tran)

Tags factor, plus15, colon

1

Solution

44

Size

1

Solution

44

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

4

Solutions

201

Size

4

Solutions

201

Size

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

1

Solution

72

Size

1

Solution

72

Size

Problem 2522. Convert given decimal number to binary number.

Created by: Pritesh Shah

Tags binary, numbers

2

Solutions

14

Size

2

Solutions

14

Size

Problem 15. Find the longest sequence of 1's in a binary sequence.

Created by: Cody Team

Tags regexp, diff, strings

2

Solutions

66

Size

2

Solutions

66

Size

Problem 250. Project Euler: Problem 10, Sum of Primes

Created by: Doug Hull

Tags projecteuler, basic matlab

2

Solutions

18

Size

2

Solutions

18

Size

Problem 249. Project Euler: Problem 9, Pythagorean numbers

Created by: Doug Hull

Tags projecteuler

1

Solution

70

Size

1

Solution

70

Size

Problem 246. Project Euler: Problem 8, Find largest product in a large string of numbers

Created by: Doug Hull

Tags projecteuler

2

Solutions

110

Size

2

Solutions

110

Size

Problem 240. Project Euler: Problem 6, Natural numbers, squares and sums.

Created by: Doug Hull

Tags projecteuler

1

Solution

52

Size

1

Solution

52

Size

Problem 239. Project Euler: Problem 5, Smallest multiple

Created by: Doug Hull

Tags projecteuler

1

Solution

58

Size

1

Solution

58

Size

Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by: Doug Hull

Tags projecteuler

6

Solutions

231

Size

6

Solutions

231

Size

Problem 234. Project Euler: Problem 3, Largest prime factor

Created by: Doug Hull

Tags projecteuler

1

Solution

18

Size

1

Solution

18

Size

Problem 230. Project Euler: Problem 1, Multiples of 3 and 5

Created by: Doug Hull

Tags projecteuler

2

Solutions

110

Size

2

Solutions

110

Size

Problem 50907. Draw a '4' in a zero matrix!

Created by: Szász Botond

Tags x

2

Solutions

54

Size

2

Solutions

54

Size

Problem 50902. Draw a '6' in a zero matrix!

Created by: Szász Botond

Tags x

1

Solution

54

Size

1

Solution

54

Size

Problem 50897. Draw a '9' in a zero matrix!

Created by: Szász Botond

Tags x

3

Solutions

56

Size

3

Solutions

56

Size

Problem 50892. Draw a '7' in a zero matrix!

Created by: Szász Botond

Tags x

1

Solution

27

Size

1

Solution

27

Size

Problem 50887. Draw a '8' in a zero matrix!

Created by: Szász Botond

Tags x

1

Solution

55

Size

1

Solution

55

Size

Problem 50882. Draw a '3' in a zero matrix!

Created by: Szász Botond

Tags x

1

Solution

45

Size

1

Solution

45

Size

Problem 50877. Draw a '2' in a zero matrix!

Created by: Szász Botond

Tags x

1

Solution

60

Size

1

Solution

60

Size

1 – 50 of 168