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1 – 50 of 177

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

2

Solutions

79

Size

2

Solutions

79

Size

Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

1

Solution

43

Size

1

Solution

43

Size

Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

3

Solutions

70

Size

3

Solutions

70

Size

Problem 1722. Find the next prime number

Created by: Chris E.

Tags prime

1

Solution

62

Size

1

Solution

62

Size

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

Created by: elias GR

Tags primes, factors

4

Solutions

83

Size

4

Solutions

83

Size

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

2

Solutions

48

Size

2

Solutions

48

Size

Problem 981. Find nearest prime number less than input number

Created by: Reza Ahmadzadeh

Tags math, prime numbers

2

Solutions

48

Size

2

Solutions

48

Size

Problem 2910. Mersenne Primes vs. All Primes

Created by: goc3

Tags primes, comparison, powers

1

Solution

33

Size

1

Solution

33

Size

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

8

Solutions

82

Size

8

Solutions

82

Size

Problem 148. Factorize THIS, buddy

Created by: the cyclist

Tags easy prime, basic matlab

2

Solutions

44

Size

2

Solutions

44

Size

Problem 1066. Multiples of a Number in a Given Range

Created by: @bmtran (Bryant Tran)

Tags factor, plus15, colon

1

Solution

52

Size

1

Solution

52

Size

Problem 1567. Make a vector of prime numbers

Created by: Marek Kuklis

Tags matlab

7

Solutions

39

Size

7

Solutions

39

Size

Problem 191. Proper Factors

Created by: @bmtran (Bryant Tran)

Tags proper factors

1

Solution

34

Size

1

Solution

34

Size

Problem 43269. Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

2

Solutions

77

Size

2

Solutions

77

Size

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

Created by: Doug Hull

Tags projecteuler

1

Solution

71

Size

1

Solution

71

Size

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

Created by: Doug Hull

Tags projecteuler, basic matlab

2

Solutions

51

Size

2

Solutions

51

Size

Problem 249. Project Euler: Problem 9, Pythagorean numbers

Created by: Doug Hull

Tags projecteuler

2

Solutions

56

Size

2

Solutions

56

Size

Problem 241. Project Euler: Problem 7, Nth prime

Created by: Doug Hull

Tags primes, projecteuler

9

Solutions

14

Size

9

Solutions

14

Size

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

Created by: Doug Hull

Tags projecteuler

2

Solutions

46

Size

2

Solutions

46

Size

Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by: Doug Hull

Tags projecteuler

6

Solutions

69

Size

6

Solutions

69

Size

Problem 239. Project Euler: Problem 5, Smallest multiple

Created by: Doug Hull

Tags projecteuler

1

Solution

23

Size

1

Solution

23

Size

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

Created by: Doug Hull

Tags projecteuler

11

Solutions

33

Size

11

Solutions

33

Size

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

Created by: Doug Hull

Tags projecteuler

1

Solution

101

Size

1

Solution

101

Size

Problem 42340. Fibonacci Decomposition

Created by: Ned Gulley

Tags fibonacci

2

Solutions

94

Size

2

Solutions

94

Size

Problem 44481. How many Fibonacci numbers?

Created by: Bob Tivnan

Tags integers, fibonacci, #easy

2

Solutions

141

Size

2

Solutions

141

Size

Problem 1946. Fibonacci-Sum of Squares

Created by: Chris Cleveland

Tags fibonacci, sum of squares

2

Solutions

46

Size

2

Solutions

46

Size

Problem 164. Right and wrong

Created by: the cyclist

Tags triangle

2

Solutions

42

Size

2

Solutions

42

Size

Problem 190. Great Circle Distance

Created by: @bmtran (Bryant Tran)

Tags distance, great circle, azimuth

7

Solutions

70

Size

7

Solutions

70

Size

Problem 194. Clockwise or Counterclockwise

Created by: Alfonso Nieto-Castanon

Tags math, polygon

4

Solutions

78

Size

4

Solutions

78

Size

Problem 198. Are you in or are you out?

Created by: the cyclist

Tags polygon, basics, poor_test_suite

2

Solutions

18

Size

2

Solutions

18

Size

Problem 330. Circumscribed circles

Created by: Alan Chalker

Tags geometry

1

Solution

70

Size

1

Solution

70

Size

Problem 336. Similar Triangles - find the height of the tree

Created by: Bruce Raine

Tags multiplication, arithmetic, geometry

2

Solutions

33

Size

2

Solutions

33

Size

Problem 381. Angle between two vectors

Created by: Aurelien Queffurust

Tags vectors, geometry, angle

1

Solution

80

Size

1

Solution

80

Size

Problem 392. Clock Hand Angle 1

Created by: @bmtran (Bryant Tran)

Tags math, clocks, fractions

3

Solutions

74

Size

3

Solutions

74

Size

Problem 450. What is the distance from point P(x,y) to the line Ax + By + C = 0?

Created by: Bruce Raine

Tags distance, pythagoras, orthogonal

1

Solution

42

Size

1

Solution

42

Size

Problem 554. Is the Point in a Circle?

Created by: Kuifeng

Tags circle, poor_test_suite, poor_problem_statement

7

Solutions

109

Size

7

Solutions

109

Size

Problem 635. Angle between Two Vectors

Created by: Richard Zapor

Tags vectors, geometry, vector calculus

1

Solution

41

Size

1

Solution

41

Size

Problem 636. Spherical radius given four points

Created by: Richard Zapor

Tags geometry linear algebra, non-linear

11

Solutions

218

Size

11

Solutions

218

Size

Problem 637. Volume of a Parallelepiped

Created by: Richard Zapor

Tags vector operators dot cross

1

Solution

14

Size

1

Solution

14

Size

Problem 768. Are all the three given point in the same line?

Created by: Reza Ahmadzadeh

Tags geometry, algebra

2

Solutions

64

Size

2

Solutions

64

Size

Problem 1072. Television Screen Dimensions

Created by: @bmtran (Bryant Tran)

Tags plus15, aspect ratio, television

3

Solutions

49

Size

3

Solutions

49

Size

Problem 752. Is X a Fibonacci Matrix?

Created by: Sean de Wolski

Tags fibonacci, Tic...Toc...

51

Solutions

264

Size

51

Solutions

264

Size

Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

Tags fibonacci, cody5, big number

8

Solutions

18

Size

8

Solutions

18

Size

Problem 232. Project Euler: Problem 2, Sum of even Fibonacci

Created by: Cody Team

Tags projecteuler, fibonacci

4

Solutions

50

Size

4

Solutions

50

Size

Problem 2423. Integer Sequence - II : New Fibonacci

Created by: rifat

Tags fibonacci, integer sequence

2

Solutions

44

Size

2

Solutions

44

Size

Problem 3092. Return fibonacci sequence do not use loop and condition

Created by: Binbin Qi

Tags loop, fibonacci, condition

1

Solution

30

Size

1

Solution

30

Size

Problem 43016. Find the next Fibonacci number

Created by: Steven Van Vaerenbergh

Tags fibonacci

1

Solution

85

Size

1

Solution

85

Size

Problem 434. Return the Fibonacci Sequence

Created by: Matt Fig

Tags fibonacci

3

Solutions

53

Size

3

Solutions

53

Size

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

4

Solutions

47

Size

4

Solutions

47

Size

Problem 44309. Pi Digit Probability

Created by: Mehmet OZC

Tags pi, string manipulation, histogram

14

Solutions

43

Size

14

Solutions

43

Size

1 – 50 of 177