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Are you smarter than a 6th grader?
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9
 Colt45
1 month ago
« Moe : piffle
Sniffle
quote #2
20
 theclans...
1 month ago
« ThirDeye : Are you smarter than a sixth grader? Part IV

If two prime numbers' difference is 2009, how many divisors does their sum have?
Since the numbers have an odd difference we know that one must be odd and one must be even. The only even prime is 2 so the numbers must be 2 and 2011, both of which are prime.

There sum is 2013.
2013 = 3 * 11 * 61
Thus the divisors of 2013 are:
1,3,11,61,3*11,3*61,11*61,3*11*61

I count 8
quote #3
23
 jhordie
1 month ago
« Moe : And guess what? I think that these problems are higher than the average 6th grade curriculum.
dear god, I hope so
quote #4
15
 tgkprog
1 month ago
Moe : And guess what? I think that these problems are higher than the average 6th grade curriculum.
« jhordie:dear god, I hope so
well the city one was quite simple if you use Venn diagrams
Click here to show image
only thing is that here since everyone spoke at least 2 langs the circles over lap more - none have an exclusive zone.

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ThirDeye my id is T G K p r o g or tgkprog not tkgprog - sixth grader gyaan "use copy paste"

gyaan in hindi means "wisdom, enlightenment" usually used when someone is going on .... :D
quote #5
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