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nine is one number

because adding 1+0+8+9=18=1+8=9

which is a quick test method to see if a number is divisible by nine.

Then 1089 / 9 = 121

Answer: 9 x 121 = 1089

Then also three would be used

so 3 x 363 = 1089 also.

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9y ago
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Q: What times What equal 1089?
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