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Subjects>Math>Math & Arithmetic

What is the fifth pentagonal number?

Anonymous

∙ 15y ago

Updated: 12/18/2022

35.

The first few pentagonal numbers are:

1-1, five, 12-number, 22-number, 35-number, 51-number, 70-number, 92-number, 117, 145, 176, 210, 247, 287, 330, 376, 425, 477, 532, 590, 651, 715, 782, 852, 925, 1001-number

Source: pentagonal-number

Wiki User

∙ 15y ago

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