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To find how many nines are there in 729, you can divide 729 by 9 repeatedly:

729

÷

9

=

81

729÷9=81

81

÷

9

=

9

81÷9=9

9

÷

9

=

1

9÷9=1

You can divide by 9 exactly three times before you get 1.

✅ So, the number of nines in 729 is 3.

This also means:

729

=

9

3

729=9

3

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Taran Preet

Lvl 2
2w ago

What else can I help you with?