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Is 9 a triangular number

Updated: 9/17/2023
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6y ago

Best Answer

yes it is!

EDIT: No, it is not.

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6y ago
This answer is:
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6y ago

It is not a triangular number. 1+2+3 = 6 and 1+2+3+4 = 10.


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Q: Is 9 a triangular number
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