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1 – 50 of 179

Problem 1012. Determine if input is a perfect number

Created by: Binbin Qi

Tags mod sum, perfect

1

Solution

48

Size

1

Solution

48

Size

Problem 170. First N Perfect Squares

Created by: @bmtran (Bryant Tran)

Tags math, perfect squares, integers

1

Solution

18

Size

1

Solution

18

Size

Problem 1722. Find the next prime number

Created by: Chris E.

Tags prime

1

Solution

45

Size

1

Solution

45

Size

Problem 1567. Make a vector of prime numbers

Created by: Marek Kuklis

Tags matlab

1

Solution

41

Size

1

Solution

41

Size

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

1

Solution

37

Size

1

Solution

37

Size

Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

3

Solutions

48

Size

3

Solutions

48

Size

Problem 981. Find nearest prime number less than input number

Created by: Reza Ahmadzadeh

Tags math, prime numbers

2

Solutions

45

Size

2

Solutions

45

Size

Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

2

Solutions

20

Size

2

Solutions

20

Size

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

Created by: Jan Orwat

Tags sequences, fibonacci, recurrence

3

Solutions

88

Size

3

Solutions

88

Size

Problem 42340. Fibonacci Decomposition

Created by: Ned Gulley

Tags fibonacci

2

Solutions

112

Size

2

Solutions

112

Size

Problem 44481. How many Fibonacci numbers?

Created by: Bob Tivnan

Tags integers, fibonacci, #easy

1

Solution

82

Size

1

Solution

82

Size

Problem 2910. Mersenne Primes vs. All Primes

Created by: goc3

Tags primes, comparison, powers

2

Solutions

55

Size

2

Solutions

55

Size

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

1

Solution

39

Size

1

Solution

39

Size

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

Created by: Doug Hull

Tags projecteuler, basic matlab

1

Solution

14

Size

1

Solution

14

Size

Problem 249. Project Euler: Problem 9, Pythagorean numbers

Created by: Doug Hull

Tags projecteuler

1

Solution

96

Size

1

Solution

96

Size

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

Created by: Doug Hull

Tags projecteuler

1

Solution

73

Size

1

Solution

73

Size

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

Created by: Doug Hull

Tags projecteuler

1

Solution

25

Size

1

Solution

25

Size

Problem 239. Project Euler: Problem 5, Smallest multiple

Created by: Doug Hull

Tags projecteuler

1

Solution

28

Size

1

Solution

28

Size

Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by: Doug Hull

Tags projecteuler

3

Solutions

66

Size

3

Solutions

66

Size

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

Created by: Doug Hull

Tags projecteuler

1

Solution

47

Size

1

Solution

47

Size

Problem 148. Factorize THIS, buddy

Created by: the cyclist

Tags easy prime, basic matlab

1

Solution

20

Size

1

Solution

20

Size

Problem 43269. Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

1

Solution

14

Size

1

Solution

14

Size

Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

1

Solution

80

Size

1

Solution

80

Size

Problem 1946. Fibonacci-Sum of Squares

Created by: Chris Cleveland

Tags fibonacci, sum of squares

1

Solution

46

Size

1

Solution

46

Size

Problem 164. Right and wrong

Created by: the cyclist

Tags triangle

2

Solutions

60

Size

2

Solutions

60

Size

Problem 190. Great Circle Distance

Created by: @bmtran (Bryant Tran)

Tags distance, great circle, azimuth

1

Solution

62

Size

1

Solution

62

Size

Problem 198. Are you in or are you out?

Created by: the cyclist

Tags polygon, basics, poor_test_suite

1

Solution

18

Size

1

Solution

18

Size

Problem 330. Circumscribed circles

Created by: Alan Chalker

Tags geometry

1

Solution

62

Size

1

Solution

62

Size

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

Created by: Bruce Raine

Tags multiplication, arithmetic, geometry

1

Solution

20

Size

1

Solution

20

Size

Problem 381. Angle between two vectors

Created by: Aurelien Queffurust

Tags vectors, geometry, angle

1

Solution

25

Size

1

Solution

25

Size

Problem 392. Clock Hand Angle 1

Created by: @bmtran (Bryant Tran)

Tags math, clocks, fractions

2

Solutions

122

Size

2

Solutions

122

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

3

Solutions

35

Size

3

Solutions

35

Size

Problem 554. Is the Point in a Circle?

Created by: Kuifeng

Tags circle, poor_test_suite, poor_problem_statement

3

Solutions

80

Size

3

Solutions

80

Size

Problem 635. Angle between Two Vectors

Created by: Richard Zapor

Tags vectors, geometry, vector calculus

1

Solution

25

Size

1

Solution

25

Size

Problem 637. Volume of a Parallelepiped

Created by: Richard Zapor

Tags vector operators dot cross

1

Solution

41

Size

1

Solution

41

Size

Problem 1072. Television Screen Dimensions

Created by: @bmtran (Bryant Tran)

Tags plus15, aspect ratio, television

4

Solutions

50

Size

4

Solutions

50

Size

Problem 636. Spherical radius given four points

Created by: Richard Zapor

Tags geometry linear algebra, non-linear

1

Solution

281

Size

1

Solution

281

Size

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

Created by: Reza Ahmadzadeh

Tags geometry, algebra

1

Solution

63

Size

1

Solution

63

Size

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

Created by: elias GR

Tags primes, factors

1

Solution

38

Size

1

Solution

38

Size

Problem 241. Project Euler: Problem 7, Nth prime

Created by: Doug Hull

Tags primes, projecteuler

2

Solutions

44

Size

2

Solutions

44

Size

Problem 191. Proper Factors

Created by: @bmtran (Bryant Tran)

Tags proper factors

2

Solutions

59

Size

2

Solutions

59

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 234. Project Euler: Problem 3, Largest prime factor

Created by: Doug Hull

Tags projecteuler

3

Solutions

36

Size

3

Solutions

36

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

3

Solutions

99

Size

3

Solutions

99

Size

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

3

Solutions

39

Size

3

Solutions

39

Size

Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

Tags fibonacci, cody5, big number

5

Solutions

14

Size

5

Solutions

14

Size

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

Created by: Cody Team

Tags projecteuler, fibonacci

1

Solution

62

Size

1

Solution

62

Size

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

Created by: Binbin Qi

Tags loop, fibonacci, condition

1

Solution

40

Size

1

Solution

40

Size

Problem 43016. Find the next Fibonacci number

Created by: Steven Van Vaerenbergh

Tags fibonacci

1

Solution

100

Size

1

Solution

100

Size

Problem 434. Return the Fibonacci Sequence

Created by: Matt Fig

Tags fibonacci

1

Solution

61

Size

1

Solution

61

Size

1 – 50 of 179