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E0052520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.What is the smallest number that is ... 阅读全文
posted @ 2010-04-22 17:19
阿债
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E004A 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 l... 阅读全文
posted @ 2010-04-22 17:05
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E003The prime factors of 13195 are 5, 7, 13 and 29.What is the largest prime factor of the number 600851475143 ?求600851475143的最大质因子。今天重写了求素数的方法# -... 阅读全文
posted @ 2010-04-22 16:20
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E002Each 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: ... 阅读全文
posted @ 2010-04-22 15:32
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有个很有意思的网站 ProjectEuler.net ，提出了200多道数学问题，要求读者用计算机求解，不限制所用的计算机语言。（2008年11月）试着用Python做了几道，挺有意思的。 Add all the natural numbers below one thousand that... 阅读全文
posted @ 2010-04-22 15:30
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