Is 1 Prime, and Does It Matter?

https://mathenchant.wordpress.com/2025/04/21/is-1-prime-and-does-it-matter/
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Is 1 Prime, and Does It Matter?

The article discusses the historical and mathematical reasons why the number 1 is not considered a prime number. It explores how the definition of 'prime' has evolved to maintain the elegance and consistency of mathematical theorems, such as the Fundamental Theorem of Arithmetic. The author argues that mathematical definitions are human choices shaped by the need for coherence and beauty, rather than being eternal truths.

Note

the sky is blue. because of a combination of history, culture and the desire for efficient communication.

lots of tidbits in this article, though the most impressionable one is that math is labeled and defined and communicated by humans and for humans.

Published

2025

Summary

The article discusses the historical and mathematical reasons why the number 1 is not considered a prime number. It explores how the definition of 'prime' has evolved to maintain the elegance and consistency of mathematical theorems, such as the Fundamental Theorem of Arithmetic. The author argues that mathematical definitions are human choices shaped by the need for coherence and beauty, rather than being eternal truths.

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