Project Euler Solutions

Problem	Theory	Python	C	C++
1. Multiples of 3 or 5		Python	C
2. Even Fibionacci Numbers		Python	C
3. Largest Prime Factor		Python	C
4. Largest Pallindrome Product		Python	C
5. Smallest Multiple		Python	C
6. Sum Square Difference		Python	C
7. 10001st Prime		Python	C
8. Largest Product in a Series		Python
9. Special Pythagorean Triplet		Python	C
10. Summation of Primes		Python	C
11. Largest Product in a Grid		Python
12. Highly Divisible Triangular Number		Python
13. Large Sum		Python
14. Longest Collatz Sequence		Python	C
15
16. Power Digit Sum		Python
17. Number Letter Counts		Python
18. Maximum Path Sum I		Python
19. Counting Sundays		Python
20. Factorial Digit Sum		Python
21. Amicable Numbers		Python
22. Names Scores		Python
23. Non-Abundant Sums		Python
24. Lexicographic Permutations		Python
25. 1000-digit Fibonacci Number		Python
26. Reciprocal Cycles		Python
27. Quadratic Primes		Python
28
29. Distinct Powers		Python
30. Digit Fifth Powers		Python	C
32. Pandigital Products		Python
33. Digit Cancelling Fractions		Python
34. Digit Factorials		Python
35. Circular Primes		Python
36. Double-base Palindromes		Python
37. Truncatable Primes		Python
38. Pandigital Multiples		Python
39
40. Champernowne's Constant		Python
41. Pandigital Prime		Python
42. Coded Triangle Numbers		Python
43. Sub-string Divisibility		Python
45. Triangular, Pentagonal, and Hexagonal		Python
46. Goldbach's Other Conjecture		Python
47. Distinct Primes Factors		Python	C
48. Self Powers		Python
49. Prime Permutations		Python
50. Consecutive Prime Sum		Python
52. Permuted Multiples		Python
53. Combinatoric Selections		Python
55. Lychrel Numbers		Python
56. Powerful Digit Sum		Python
57. Square Root Convergents		Python
58
60
62
63. Powerful Digit Counts		Python
65. Convergents of e		Python
67. Maximum Path Sum II		Python
69	Theory
81. Path Sum: Two Ways		Python
85
87
92. Square Digit Chains		Python	C
97. Large Non-Mersenne Prime		Python
99
102. Triangle Containment		Python
104
123
145. Reversible Numbers		Python
179. Consecutive Positive Divisors		Python
206. Concealed Square		Python