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Project Euler Solutions

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By Mike Molony ⋅ April 11, 2009 ⋅ Post a comment

Count the values of C(n,r), for 1 ≤ n ≤ 100, that exceed one-million.

By Mike Molony ⋅ April 10, 2009 ⋅ 11 comments

Compare hands in a game of poker and determine a winner

By Mike Molony ⋅ April 10, 2009 ⋅ 2 comments

Find how many Lychrel numbers are there below ten-thousand.

By Mike Molony ⋅ April 12, 2009 ⋅ Post a comment

Considering natural numbers of the form, a^b, find the maximum digital sum.

By Mike Molony ⋅ April 12, 2009 ⋅ 4 comments

Investigate the expansion of the continued fraction for the square root of two.

By Mike Molony ⋅ April 11, 2009 ⋅ 2 comments

Counting primes that lie on the diagonals of the spiral grid.

By Mike Molony ⋅ May 28, 2009 ⋅ One comment

Using a brute force attack, decrypt the cipher using XOR encryption

By Mike Molony ⋅ June 3, 2009 ⋅ 7 comments

Find a set of five primes for which any two primes concatenate to produce another prime.

By Mike Molony ⋅ January 16, 2011 ⋅ 5 comments

Find the sum of the only set of six 4-digit figurate numbers with a cyclic property.

By Mike Molony ⋅ April 3, 2009 ⋅ Post a comment

Find the smallest cube for which exactly five permutations of its digits are cube.

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