Cousin prime

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

In number theory, cousin primes are prime numbers that differ by four. Compare this with twin primes, pairs of prime numbers that differ by two, and sexy primes, pairs of prime numbers that differ by six.

Excerpt from the Wikipedia article “Cousin prime”, under the CC BY-SA 4.0 license. Read the article on Wikipedia