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PencilOnePebble#numberblock #numberblocks #perfect #mytake
I won
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Cool
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Even 120 and 2016
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Is 496 3rd perfect number?
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How it works:
1+2=3
3 is prime
3×2=6
1+2+4=7
7 is prime
7×4=28
1+2+4+8=15
15 is not prime
1+2+4+8+16=31
31 is prime
31×16=496...
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Wow
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