data/problems/12.yml
---
:id: 12
:name: Highly divisible triangular number
:url: https://projecteuler.net/problem=12
:content: "The sequence of triangle numbers is generated by adding the natural numbers.
So the 7<sup>th</sup> triangle number would be 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28. The
first ten terms would be:\n\n1, 3, 6, 10, 15, 21, 28, 36, 45, 55, ...\n\nLet us
list the factors of the first seven triangle numbers:\n\n> ** 1** : 1 \n>
** 3** : 1,3 \n> ** 6** : 1,2,3,6 \n> **10** : 1,2,5,10 \n> **15**
: 1,3,5,15 \n> **21** : 1,3,7,21 \n> **28** : 1,2,4,7,14,28\n\nWe can see that
28 is the first triangle number to have over five divisors.\n\nWhat is the value
of the first triangle number to have over five hundred divisors?\n\n"