Template:Did you know nominations/Sophie Germain's identity

The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: promoted by AirshipJungleman29 (talk) 09:41, 18 July 2023 (UTC)

Sophie Germain's identity

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... that multiple mathematics competitions have asked whether numbers of the form $n^{4}+4^{n}$ $n^{4}+4^{n}$ can be prime, answered negatively (for $n>1$ $n>1$ ) using Sophie Germain's identity? Source: Engel 1998, https://books.google.com/books?id=IJLzBwAAQBAJ&pg=PA121
- Reviewed: Template:Did you know nominations/Anne Mills Archbold
- Comment: The mathematics formulas cause the usual scripts that calculate readable prose size to miss much of the text of the article: they fail to count any text that follows a block formula within the same paragraph. By my calculations, the readable prose size (not counting formulas, headings, and references) is approximately 2200 bytes.

Created by David Eppstein (talk). Self-nominated at 18:22, 21 June 2023 (UTC). Post-promotion hook changes for this nom will be logged at Template talk:Did you know nominations/Sophie Germain's identity; consider watching this nomination, if it is successful, until the hook appears on the Main Page.

General: Article is new enough and long enough
New enough: Long enough:

Policy: Article is sourced, neutral, and free of copyright problems
Adequate sourcing: Neutral: Free of copyright violations, plagiarism, and close paraphrasing:

Hook: Hook has been verified by provided inline citation
Cited: Interesting:

QPQ: Done.

Overall:

Looks good overall, GTG Crum375 (talk) 12:47, 2 July 2023 (UTC)