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Zero. I would not both er with regrouping.

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Wiki User

10y ago
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Wiki User

8y ago

There is no limit. You can have an infinite number of twos.

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Wiki User

6y ago

The greatest number is 7.

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Wiki User

6y ago

7 digits

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Q: What is the greatest number of times you would regroup when mulitiplying two 2 - digit factors?
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