Project Euler My solutions for Project Euler problems Problem Title Solution 1 Multiples of 3 and 5 Python, Java, Go 2 Even Fibonacci Numbers Python, Java, Go 3 Largest Prime Factor Python, Java, Go 4 Largest Palindrome Product Python, Java 5 Smallest Multiple Python, Java 6 Sum Square Difference Python, Java 7 10001st Prime Python, Java 8 Largest Product in a Series Python, Java 9 Special Pythagorean Triplet Python, Java 10 Summation of Primes Python, Java 11 Largest Product in a Grid Python, Java 12 Highly Divisible Triangular Number Python, Java 13 Large Sum Python, Java 14 Longest Collatz Sequence Python, Java 15 Lattice Paths Python, Java 16 Power Digit Sum Python, Java 17 Number Letter Counts Python 18 Maximum Path Sum I Python, Java 19 Counting Sundays Python, Java 20 Factorial Digit Sum Python, Java 21 Amicable Numbers Python, Java 22 Names Scores Python, Java 23 Non-Abundant Sums Python 24 Lexicographic Permutations Python 25 1000-Digit Fibonacci Number Python, Java 26 Reciprocal Cycles Python 27 Quadratic Primes Python, Java 28 Number Spiral Diagonals Python, Java 29 Distinct Powers Python, Java 30 Digit Fifth Powers Python 31 Coin Sums Python, Java 32 Pandigital Products Python 33 Digit Cancelling Fractions Python 34 Digit Factorials Python, Java 35 Circular Primes Python 36 Double-Base Palindromes Python 37 Trunctable Primes Python 38 Pandigital Multiples Python 39 Integer Right Triangles Python, Java 40 Champernowne's Constant Python, Java 41 Pandigital Prime Python 42 Coded Triangle Numbers Python, Java 43 Sub-String Divisibility Python 44 Pentagon Numbers Python 45 Triangular, Pentagonal, and Hexagonal Python 46 Goldbach's Other Conjecture Python 47 Distinct Primes Factors Python 48 Self Powers Python, Java 49 Prime Permutations Python 50 Consecutive Prime Sum Python 52 Permuted Multiples Python 53 Combinatoric Selections Python 54 Poker Hands Python 55 Lychrel Numbers Python 56 Powerful Digit Sum Python 57 Square Root Convergents Python 63 Powerful Digit Counts Python 67 Maximum Path Sum II Python, Java 69 Totient Maximum Java 81 Path Sum: Two Ways Python 92 Square Digit Chains Python 97 Large Non-Mersenne Prime Python, Java