cuban prime
(another Prime Pages' Glossary entries)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

A cuban prime has the form (n+1)^3-n^3, and is named after differences between successive cubic numbers. The sequence begins 7, 19, 37, 61, 127, 271, ....




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