alleryTwin primes are pairs of primes that differ by how much?
ATwo
BOne
CThree
DFour
Answer & Solution
Correct answer: A. Two
1. The twin prime conjecture is about pairs of primes.
2. Such pairs differ by two, like 11 and 13.
3. A difference of one is impossible except for 2 and 3, and difference 3 or 4 does not define twins.
_Source: Wikipedia, Prime number, lead section_
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