Cryptocurrency Q&A Why is 91 not a prime number?

Why is 91 not a prime number?

KabukiPassion KabukiPassion Tue Aug 13 2024 | 7 answers 1760
I'm curious to understand why 91 is not classified as a prime number. Could you explain the reasoning behind this? I'm looking for a clear and concise answer that highlights the key factors that make 91 not prime. Thank you in advance for shedding light on this mathematical concept. Why is 91 not a prime number?

7 answers

Nicola Nicola Thu Aug 15 2024
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Caterina Caterina Thu Aug 15 2024
Upon inspection, we can see that 91 has additional divisors beyond just one and 91 itself.

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GinsengBoost GinsengBoost Thu Aug 15 2024
Specifically, 91 can be divided evenly by 1, 7, 13, and 91, totaling four divisors.

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SsamziegangStroll SsamziegangStroll Thu Aug 15 2024
This directly contradicts the definition of a prime number, which requires only two divisors.

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Raffaele Raffaele Thu Aug 15 2024
The number 91, when examined closely, does not meet the criteria for being a prime number.

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