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Summing consecutive factorials (Posted on 2018-06-26) Difficulty: 1 of 5
1!=1^2; 1!+2!+3!=3^2
Are there any other sums of n consecutive factorials that sum up to a perfect square?

Either list them all or prove there are none.

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
re(5): If you don't have to start with 1 ...Daniel2018-06-26 20:36:47
re(4): If you don't have to start with 1 ...Daniel2018-06-26 20:23:20
re(3): If you don't have to start with 1 ...xdog2018-06-26 12:19:17
re(2): If you don't have to start with 1 ...Daniel2018-06-26 12:00:27
Some Thoughtsre: If you don't have to start with 1 ...Steve Herman2018-06-26 10:19:37
If you don't have to start with 1 ...Larry2018-06-26 10:13:21
analytical solutionDaniel2018-06-26 10:02:58
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