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Is 63 a triangular number I think it is a triangular number.
no it is not a triangular number
Decimal triangular number it is
36 is a triangular number, Square number and also a Consecutive number.
60 is abundant.
No, 53 is not a triangular number.
No, 33 is not a triangular number.
No, 172 is not a triangular number.
No, 324 is not a triangular number!
yes it is a triangular number
No, 18 is not a triangular number.