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                            1376 3761774552 8056357074 7593635869 8644919801
+ This prime is the sum of consecutive integer pairs up to 19 in ascending order in paired-sum factorials: (0+1)! + (2+3)! + (4+5)! + (6+7)! + (8+9)! + (10+11)! + (12+13)! + (14+15)! + (16+17)! + (18+19)!. [Post]




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