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【Project Euler】【Problem 1】Multiples of 3 and 5
Multiples of 3 and 5Problem 1If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.Find the sum of all the mult原创 2013-03-26 18:31:56 · 765 阅读 · 0 评论 -
【Project Euler】【Problem 8】Largest product in a series
Largest product in a seriesProblem 8Find the greatest product of five consecutive digits in the 1000-digit number.7316717653133062491922511967442657474235534919493496983520312774506326原创 2013-03-27 18:40:35 · 1176 阅读 · 0 评论 -
【Project Euler】【Problem 6】Sum square difference
Sum square differenceProblem 6The sum of the squares of the first ten natural numbers is,12 + 22 + ... + 102 = 385The square of the sum of the first ten natural numbers is,(1 + 2 + .原创 2013-03-27 18:26:51 · 666 阅读 · 0 评论 -
【Project Euler】【Problem 9】Special Pythagorean triplet
Special Pythagorean tripletProblem 9A Pythagorean triplet is a set of three natural numbers, a b c, for which,a2 + b2 = c2For example, 32 + 42 = 9 + 16 = 25 = 52.There exists exa原创 2013-03-27 18:50:58 · 662 阅读 · 0 评论 -
【Project Euler】【Problem 7】10001st prime
10001st primeProblem 7By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.What is the 10 001st prime number?Answ原创 2013-03-27 18:31:26 · 680 阅读 · 0 评论 -
【Project Euler】【Problem 5】Smallest multiple
Smallest multipleProblem 52520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.What is the smallest positive number that is evenly di原创 2013-03-26 19:55:50 · 682 阅读 · 0 评论 -
【Project Euler】【Problem 2】Even Fibonacci numbers
Even Fibonacci numbersProblem 2Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:1, 2, 3, 5, 8,原创 2013-03-26 18:48:41 · 580 阅读 · 0 评论 -
【Project Euler】【Problem 4】Largest palindrome product
Largest palindrome productProblem 4A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 99.Find the largest pal原创 2013-03-26 19:41:59 · 631 阅读 · 0 评论 -
【Project Euler】【Problem 3】Largest prime factor
Largest prime factorProblem 3The prime factors of 13195 are 5, 7, 13 and 29.What is the largest prime factor of the number 600851475143 ?Answer:6857原创 2013-03-26 19:34:11 · 664 阅读 · 0 评论 -
【Project Euler】【Problem 10】Summation of primes
Summation of primesProblem 10The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.Find the sum of all the primes below two million.Answer:142913828922原创 2013-03-27 18:57:16 · 656 阅读 · 0 评论