phÂœnix stuck in the tree
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Better show my working here.
Well, whilst trying to work out the answer, I noticed
1->4 = 10 = 5 x 2
1->5 = 15 = 5 x 3
1->6 = 21 = 7 x 3
1->7 = 28 = 7 x 4
1->8 = 36 = 9 x 4
1->9 = 45 = 9 x 5
Therefore, if we take a million...
1->1,000,000 = ??? = 1,000,001 x 500,000 = 500,000,500,000
Anywhere close?
Well, whilst trying to work out the answer, I noticed
1->4 = 10 = 5 x 2
1->5 = 15 = 5 x 3
1->6 = 21 = 7 x 3
1->7 = 28 = 7 x 4
1->8 = 36 = 9 x 4
1->9 = 45 = 9 x 5
Therefore, if we take a million...
1->1,000,000 = ??? = 1,000,001 x 500,000 = 500,000,500,000
Anywhere close?
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- Senior Member
- Posts: 4166
- Joined: Wed Jul 20, 2005 3:33 pm
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- Senior Member
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- Joined: Wed Nov 29, 2006 9:06 am
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Just as an aside to the previous question, the genius that is Gauss was reported to have been given a similar question by a teacher at school, asking what the total from 1 to 100 was. Within a couple of minutes he replied 5050, the correct answer, and had worked this out by realising that if you add the highest and lowest numbers together, they equal 101, as does every pair from thereon in. His total was 10100, and halfing this number as he had 50 pairs gave 5050.
Not bad for someone who was around 9 at the time.
Not bad for someone who was around 9 at the time.