Someone is trying to open a safe, a briefcase, or padlock, and that person says, "What's the combination?". Referring to sequence of numbers to open said lock. What's the Japanese equivalent for combination when used in this way?
EDIT: Someone put this as an answer earlier then deleted it:
組{くみ}み合{あ}わせが何ですか？
Was this wrong?
[暗証番号]{あんしょうばんごう} is the appropriate word for those cases.
The same word is used for bank account PINs and ten-key door lock pass codes as well.
組み合わせ is combination/ grouping. Literal meaning:
This is unfortunately not proper for padlock. It would give an entire whole different meaning if you are asking for matching padlock (in terms of shape, color, etc. to other padlock/ item that makes the original padlock looks better)
