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YES!!!

Without doing the 'mechanics' of division/factoring.

If the digits of the given number sum/add to '9' , then it will divide by '9'.

504 ) 5 + 0 + 4 = 9)

Hence 504 is multiple of '9' or '9' is a factor of '504'.

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lenpollock

Lvl 17
2w ago

What else can I help you with?