125
This number is a composite.
Just showing those entries submitted by 'Caldwell': (Click here to show all)
Conjecture by Zhi-Wei Sun to be the largest power
(53) for which there is no prime between it and
the previous power (112). The other prime gaps
between powers are in (23, 32),
(25, 62) and
(52, 33). [Caldwell]
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