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1 – 50 of 506

Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

2

Solutions

126

Size

2

Solutions

126

Size

Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

2

Solutions

46

Size

2

Solutions

46

Size

Problem 42510. Divisible by n, Composite Divisors

Created by: goc3

Tags prime, string, precision

1

Solution

40

Size

1

Solution

40

Size

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

Created by: goc3

Tags prime, string, precision

1

Solution

40

Size

1

Solution

40

Size

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

Created by: goc3

Tags prime, string, precision

2

Solutions

60

Size

2

Solutions

60

Size

Problem 42340. Fibonacci Decomposition

Created by: Ned Gulley

Tags fibonacci

1

Solution

63

Size

1

Solution

63

Size

Problem 191. Proper Factors

Created by: @bmtran (Bryant Tran)

Tags proper factors

1

Solution

36

Size

1

Solution

36

Size

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

Created by: elias GR

Tags primes, factors

2

Solutions

74

Size

2

Solutions

74

Size

Problem 1066. Multiples of a Number in a Given Range

Created by: @bmtran (Bryant Tran)

Tags factor, plus15, colon

1

Solution

34

Size

1

Solution

34

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

2

Solutions

100

Size

2

Solutions

100

Size

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

Created by: Jan Orwat

Tags sequences, fibonacci, recurrence

1

Solution

86

Size

1

Solution

86

Size

Problem 148. Factorize THIS, buddy

Created by: the cyclist

Tags easy prime, basic matlab

4

Solutions

50

Size

4

Solutions

50

Size

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

1

Solution

68

Size

1

Solution

68

Size

Problem 44481. How many Fibonacci numbers?

Created by: Bob Tivnan

Tags integers, fibonacci, #easy

1

Solution

132

Size

1

Solution

132

Size

Problem 43269. Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

1

Solution

15

Size

1

Solution

15

Size

Problem 42509. Divisible by n, Truncated-number Divisors

Created by: goc3

Tags prime, string, precision

2

Solutions

40

Size

2

Solutions

40

Size

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

Created by: goc3

Tags prime, string, precision

3

Solutions

86

Size

3

Solutions

86

Size

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

Created by: goc3

Tags prime, string, precision

2

Solutions

104

Size

2

Solutions

104

Size

Problem 42418. Divisible by 16

Created by: goc3

Tags string, precision, overflow

1

Solution

42

Size

1

Solution

42

Size

Problem 42417. Divisible by 15

Created by: goc3

Tags string, precision, overflow

1

Solution

56

Size

1

Solution

56

Size

Problem 42416. Divisible by 14

Created by: goc3

Tags string, precision, overflow

1

Solution

105

Size

1

Solution

105

Size

Problem 42415. Divisible by 13

Created by: goc3

Tags string, precision, overflow

1

Solution

63

Size

1

Solution

63

Size

Problem 42409. Divisible by 7

Created by: goc3

Tags string, precision, overflow

1

Solution

63

Size

1

Solution

63

Size

Problem 1284. Animated GIF Creator

Created by: Richard Zapor

Tags meshgrid, gif, refreshdata

1

Solution

397

Size

1

Solution

397

Size

Problem 45927. GPA

Created by: Kerem Kutan

Tags basic, basic matlab, basics

1

Solution

20

Size

1

Solution

20

Size

Problem 45897. Volume of Equilateral Triangle Prism

Created by: Kerem Kutan

Tags triangle, volume, prism

1

Solution

21

Size

1

Solution

21

Size

Problem 45903. Given A4 sizes find A3's long side

Created by: Kerem Kutan

Tags basic, size, length

1

Solution

13

Size

1

Solution

13

Size

Problem 2909. Approximation of Pi (vector inputs)

Created by: goc3

Tags pi, infinite series, approximation

1

Solution

69

Size

1

Solution

69

Size

Problem 2569. ASCii Code

Created by: Marisa

Tags uic-bioe240, poor_test_suite

2

Solutions

14

Size

2

Solutions

14

Size

Problem 2570. ASCii Code

Created by: Marisa

Tags uic-bioe240, poor_test_suite

1

Solution

12

Size

1

Solution

12

Size

Problem 1644. What percentage?

Created by: Mandeep Singh

Tags bit manipulation, nothing-to-do-with-bit-manipulation

1

Solution

15

Size

1

Solution

15

Size

Problem 42966. find "greatest common divisor" of two integer value

Created by: Mehdi

Tags gcd, integer number

1

Solution

14

Size

1

Solution

14

Size

Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by: Doug Hull

Tags projecteuler

1

Solution

62

Size

1

Solution

62

Size

Problem 1095. Circular Primes (based on Project Euler, problem 35)

Created by: James

Tags primes, projecteuler, circular reasoning

1

Solution

101

Size

1

Solution

101

Size

Problem 42414. Divisible by 12

Created by: goc3

Tags string, precision, overflow

1

Solution

102

Size

1

Solution

102

Size

Problem 42413. Divisible by 11

Created by: goc3

Tags string, precision, overflow

2

Solutions

67

Size

2

Solutions

67

Size

Problem 42410. Divisible by 8

Created by: goc3

Tags string, precision, overflow

3

Solutions

42

Size

3

Solutions

42

Size

Problem 42406. Divisible by 4

Created by: goc3

Tags string, precision, overflow

4

Solutions

42

Size

4

Solutions

42

Size

Problem 42411. Divisible by 9

Created by: goc3

Tags string, precision, overflow

1

Solution

49

Size

1

Solution

49

Size

Problem 42408. Divisible by 6

Created by: goc3

Tags string, precision, overflow

1

Solution

97

Size

1

Solution

97

Size

Problem 42405. Divisible by 3

Created by: goc3

Tags string, precision, overflow

1

Solution

49

Size

1

Solution

49

Size

Problem 241. Project Euler: Problem 7, Nth prime

Created by: Doug Hull

Tags primes, projecteuler

5

Solutions

38

Size

5

Solutions

38

Size

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

1

Solution

40

Size

1

Solution

40

Size

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

Created by: Doug Hull

Tags projecteuler

2

Solutions

18

Size

2

Solutions

18

Size

Problem 239. Project Euler: Problem 5, Smallest multiple

Created by: Doug Hull

Tags projecteuler

1

Solution

23

Size

1

Solution

23

Size

Problem 2910. Mersenne Primes vs. All Primes

Created by: goc3

Tags primes, comparison, powers

3

Solutions

74

Size

3

Solutions

74

Size

Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

1

Solution

67

Size

1

Solution

67

Size

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

1

Solution

41

Size

1

Solution

41

Size

Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

1

Solution

25

Size

1

Solution

25

Size

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

Created by: Doug Hull

Tags projecteuler

1

Solution

57

Size

1

Solution

57

Size

1 – 50 of 506