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1226280710981 (just those submitted by Warriner) |
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Just showing those entries submitted by 'Warriner': (Click here to show all) 
1226280710981 = 1! - 2! + 3! - 4! + 5! - 6! + 7! - 8! + 9! - 10! + 11! - 12! + 13! - 14! + 15! is prime. [Warriner]
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