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The largest number representable in 64 bits

A rewrite of this blog post with many new insights and updates appeared in Jan 2026
Points
111
HN comments
105
Submissions
1
Cited by
4 commenters

Math & AlgorithmsSoftware Engineering2023

On Hacker News

SubmittedTitle on HNPointsComments
Nov 25, 2023The largest number representable in 64 bits by tromp111105

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Linked from 4 Hacker News comments by 4 different people, from Apr 2024 to Sep 2025.

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