Firday Riddle

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nudgie
nudgie Member Posts: 1,478 Member
in Colorectal Cancer #1
Remember NO goolging or searching the Internet allowed, and good luck!!!!!!!!!!!

RIDDLE: If you use a certain formula on 13, you end up with 7.

Under the same formula, 2352 becomes 16, 246 becomes 14, 700 turns into 16, and 1030 becomes 14.

What would 9304 become

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