null null null nullnull null null nullnull null null nullnull null null nullnull null null nullnull null null null

No, leave both challenges open

As Luis Mendo requested in the comment, here is a copy of my statement for voting.

I believe it is not a dupe because the solutions to the existing challenge are not likely to be competitive here, and solutions to this one are not likely to be valid on the other.

Using Mego's post as the guideline, in my opinion:

• Is the "meat" of the challenges the same? Not really. The restriction imposed on the old challenge is so hard for languages without infinite-precision integer support, making the "restriction" the core part of the challenge, rather than the factorial-calculating part.

• Could answers from one be posted to the other, with trivial modifications at most, and be competitive? No, based on the quote above.

• Which challenge is better? This part is irrelevant since it is about which to leave open assuming they are dupes of each other, and I don't think they are dupes.

No, leave both challenges open

As Luis Mendo requested in the comment, here is a copy of my statement for voting.

I believe it is not a dupe because the solutions to the existing challenge are not likely to be competitive here, and solutions to this one are not likely to be valid on the other.

Using Mego's post as the guideline, in my opinion:

• Is the "meat" of the challenges the same? Not really. The restriction imposed on the old challenge is so hard for languages without infinite-precision integer support, making the "restriction" the core part of the challenge, rather than the factorial-calculating part.

• Could answers from one be posted to the other, with trivial modifications at most, and be competitive? No, based on the quote above.

• Which challenge is better? This part is irrelevant since it is about which to leave open assuming they are dupes of each other, and I don't think they are dupes.

null null null nullnull null null nullnull null null nullnull null null nullnull null null nullnull null null null

No, leave both challenges open

As Luis Mendo requested in the comment, here is a copy of my statement for voting.

I believe it is not a dupe because the solutions to the existing challenge are not likely to be competitive here, and solutions to this one are not likely to be valid on the other.

No, leave both challenges open

As Luis Mendo requested in the comment, here is a copy of my statement for voting.

I believe it is not a dupe because the solutions to the existing challenge are not likely to be competitive here, and solutions to this one are not likely to be valid on the other.

Using Mego's post as the guideline, in my opinion:

• Is the "meat" of the challenges the same? Not really. The restriction imposed on the old challenge is so hard for languages without infinite-precision integer support, making the "restriction" the core part of the challenge, rather than the factorial-calculating part.

• Could answers from one be posted to the other, with trivial modifications at most, and be competitive? No, based on the quote above.

• Which challenge is better? This part is irrelevant since it is about which to leave open assuming they are dupes of each other, and I don't think they are dupes.