Find the sum of all the positive integers which cannot be written as the sum of two abundant numbers. A … More

# Category: Java

# Project Euler – Problem # 22 – Solved with Java

What is the total of all the name scores in the file of first names? Using names.txt (right click and … More

# Project Euler – Problem # 21 – Solved with Java

Problem: Evaluate the sum of all amicable pairs under 10000. Let d(n) be defined as the sum of proper divisors … More

# Project Euler – Problem # 20 – Solved with Java

Find the sum of digits in 100! n! means n * (n – 1) * … * 3 * 2 … More

# Project Euler – Problem # 19 – Solved with Java

How many Sundays fell on the first of the month during the twentieth century? You are given the following information, … More

# Project Euler – Problem # 17 – Solved with Java

How many letters would be needed to write all the numbers in words from 1 to 1000? If the numbers … More

# Project Euler – Problem # 16 – Solved with Java

What is the sum of the digits of the number 21000? 215 = 32768 and the sum of its digits … More

# Project Euler – Problem # 15 – Solved with Java

Starting in the top left corner in a 20 by 20 grid, how many routes are there to the bottom … More

# Project Euler – Problem # 14 – Solved with Java

Problem: The following iterative sequence is defined for the set of positive integers: n –> n/2 (n is even) n … More

# Project Euler – Problem # 13 – Solved with Java

Find the first ten digits of the sum of one-hundred 50-digit numbers. Work out the first ten digits of the … More