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Solutions 10 – 50

This category contains 41 posts

Project Euler 11 Solution

Find the greatest product of four adjacent numbers in the same direction in a grid.

Project Euler 17 Solution

Count how many letters would be needed to write all the numbers in words from 1 to 1000.

Project Euler 10 Solution

Calculate the sum of all the primes below two million.

Project Euler 47 Solution

Find the first four consecutive integers to have four distinct primes factors.

Project Euler 28 Solution

Find the sum of both diagonals in a square spiral.

Project Euler 26 Solution

Find the value of d < 1000 for which 1/d contains the longest recurring cycle.

Project Euler 43 Solution

Find the sum of all pandigital numbers with an unusual sub-string divisibility property.

Project Euler 42 Solution

Count how many ‘triangle words’ a list of common English words contain.

Project Euler 37 Solution

Find the sum of all eleven primes that are truncatable from both left to right and right to left.

Project Euler 33 Solution

Discover all the fractions with an unorthodox cancelling method.