Commit cd7130db4dca87e59e7474b2af785533e31448c2

Authored by Francisco Javier Coutiño
1 parent d4c72c9b23
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init p12

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12 - Highly divisible triangular number/p12.cpp
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  1 +/*
  2 +
  3 + The sequence of triangle numbers is generated by adding the natural numbers. So the 7th triangle number would be 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28. The first ten terms would be:
  4 +
  5 + 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, ...
  6 +
  7 + Let us list the factors of the first seven triangle numbers:
  8 +
  9 + 1: 1
  10 + 3: 1,3
  11 + 6: 1,2,3,6
  12 + 10: 1,2,5,10
  13 + 15: 1,3,5,15
  14 + 21: 1,3,7,21
  15 + 28: 1,2,4,7,14,28
  16 + We can see that 28 is the first triangle number to have over five divisors.
  17 +
  18 + What is the value of the first triangle number to have over five hundred divisors?
  19 +
  20 +*/
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