which are the triangular numbers
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Answer:
Which are the triangular
numbers?
The triangular numbers up to 100 are 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91 -- so what's next? Perfect Numbers These are the numbers which equal the sum of all of their smaller factors. They are few and far between -- in fact, nobody knows how many there are. Only 47 perfect numbers are currently known.
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Step-by-step explanation:
the triangular numbers are
0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, 378, 406, 435, 465, 496, 528, 561, 595, 630, 666..
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