12700...81647 (74-digits)

This number is a prime.

                                                                        1270
0679788669 6298458701 2741609765 5693745481 6451173202 3250594337 9392681647

Just showing those entries submitted by 'Mayonisake': (Click here to show all)

+ Sum of the factorials of each of the first 28 positive odd numbers is prime. [Mayonisake]

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