what does 5c2 and 3 factorial stand for here?

[gilded sandal]

1. Do not ping the Moderators, unless someone is breaking the rules.
2. Do not ping the Helper Moderators, unless there is a conflict between helpers.
3. Do not ping other members randomly for help.
4. Ask your question and show the work you've done so far. If you've posted a screenshot of a question, specify which part you need help with.
5. Wait patiently for a helper to come along.
6. If the Helper has answered your question, remember to thank them with the Mathematics Ranks bot and close the thread with:

+close
Feel free to nominate the person for helper of the week in #helper-nominations
If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[amber coyote]

5C2 is the number of x being repeated, 3! are the unique rolled numbers like the screenshot says

Like in the example (1,2,3,4,1), the 1 being repeated is counted by 5C2, and the 2-4 are counted by the 3!

[topaz tapir]

ooooh I get the 3!, but then 5C2 means that out of 5 dices, youre choosing 2 dices to be the same right?

[amber coyote]

Yes

[topaz tapir]

oh thank you

+close

[spare steppe]

Please thank your Helpers before closing!

Please thank the helpers who assisted you by clicking the buttons below. You can thank each helper only once. Once you're done, click "Close Post" to close this thread.

[spare steppe]

Thank you for your feedback! Omegabet_ has been awarded 1 . They now have 8 . They have 3 daily left for today.

[spare steppe]

@topaz tapir

<:HelpIcon:1304095958283321385>| Help Reminder

Hello weeeeeeee2468, this is a friendly reminder that your help request has been inactive for more than 24 hours. If you no longer need assistance, please consider closing the thread using the +close command. This thread will be automatically closed in 3 days if it remains inactive.

[topaz tapir]

+close

[spare steppe]

Please thank your Helpers before closing!

Please thank the helpers who assisted you by clicking the buttons below. You can thank each helper only once. Once you're done, click "Close Post" to close this thread.