# Monthly Archives: August 2011

## Project Euler Problem 10 (PHP)

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Problem 10 The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below two million. Script Execution Time: 88.6965 seconds function isPrime(\$n) { for (\$x=2; \$x … Continue reading

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## Project Euler Problem 9 (PHP)

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Problem 9 A Pythagorean triplet is a set of three natural numbers, a < b < c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 = 9 + 16 = 25 = 52. There exists exactly … Continue reading

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## Education and standardized testing

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While looking through Hacker News this morning, I came across an article about the education system in China.  The article looks at the lives of four students within the system and weighs the pros and cons of how things are … Continue reading

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Posted in Education, Family, Home School, Personal, Public School | | Comments Off on Education and standardized testing

## Running a Cub Scout pack.

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As the Cubmaster of a Cub Pack, I am responsible along with the Assistant Cubmaster and the Pack Committee to deliver a quality program for the boys.  As part of that job, we need to have trained leaders to run … Continue reading

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Posted in Cub Scouts, Personal | Tagged , | Comments Off on Running a Cub Scout pack.

## Project Euler Problem 8 (PHP)

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Problem 8 Find the greatest product of five consecutive digits in the 1000-digit number. 73167176531330624919225119674426574742355349194934 96983520312774506326239578318016984801869478851843 85861560789112949495459501737958331952853208805511 12540698747158523863050715693290963295227443043557 66896648950445244523161731856403098711121722383113 62229893423380308135336276614282806444486645238749 30358907296290491560440772390713810515859307960866 70172427121883998797908792274921901699720888093776 65727333001053367881220235421809751254540594752243 52584907711670556013604839586446706324415722155397 53697817977846174064955149290862569321978468622482 83972241375657056057490261407972968652414535100474 82166370484403199890008895243450658541227588666881 16427171479924442928230863465674813919123162824586 17866458359124566529476545682848912883142607690042 24219022671055626321111109370544217506941658960408 07198403850962455444362981230987879927244284909188 84580156166097919133875499200524063689912560717606 05886116467109405077541002256983155200055935729725 71636269561882670428252483600823257530420752963450 Script Execution Time: 0.0129 seconds \$n … Continue reading

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## Project Euler Problem 7 (PHP)

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Problem 7 By 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? Script Execution Time: 1.3918 seconds function isPrime(\$n) { \$m … Continue reading

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