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Solutions 10 – 50

This category contains 26 posts

Project Euler 35 Solution

How many circular primes are there below one million?

Project Euler 36 Solution

Find the sum of all numbers less than one million, which are palindromic in both base 10 and base 2.

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 38 Solution

What is the largest 1 to 9 pandigital that can be formed by multiplying a fixed number by 1, 2, 3, … ?

Project Euler 39 Solution

Find the value of p ≤ 1000 which produces the most integer right triangles.

Project Euler 40 Solution

Compose Champernowne’s constant

Project Euler 41 Solution

Find the largest n-digit pandigital prime that exists

Project Euler 42 Solution

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

Project Euler 43 Solution

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

Project Euler 44 Solution

Find the smallest pair of pentagonal numbers whose sum and difference is pentagonal.