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Which among the following is incorrect pain of twin primes?
- a)17, 19
- b)21, 24
- c)29, 31
- d)41, 43
- e)None of these
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which among the following is incorrect pain of twin primes?a)17, 19b)2...
Explanation:
To determine which among the given pairs of numbers are twin primes, we need to understand what twin primes are. Twin primes are pairs of prime numbers that have a difference of 2. For example, (3, 5), (11, 13), and (17, 19) are all twin primes.
Checking the options:
a) 17, 19: This pair has a difference of 2, so it is a valid twin prime pair.
b) 21, 23: This pair has a difference of 2, so it is a valid twin prime pair.
c) 29, 31: This pair has a difference of 2, so it is a valid twin prime pair.
d) 41, 43: This pair has a difference of 2, so it is a valid twin prime pair.
Conclusion:
All the given options have pairs of prime numbers that satisfy the condition of being twin primes. Therefore, the correct answer is option 'B', which states that 21 and 23 are twin primes. However, this is incorrect as 21 is not a prime number. Therefore, option 'B' is the incorrect pair of twin primes.
Correct Answer: B) 21, 23
To determine which among the given pairs of numbers are twin primes, we need to understand what twin primes are. Twin primes are pairs of prime numbers that have a difference of 2. For example, (3, 5), (11, 13), and (17, 19) are all twin primes.
Checking the options:
a) 17, 19: This pair has a difference of 2, so it is a valid twin prime pair.
b) 21, 23: This pair has a difference of 2, so it is a valid twin prime pair.
c) 29, 31: This pair has a difference of 2, so it is a valid twin prime pair.
d) 41, 43: This pair has a difference of 2, so it is a valid twin prime pair.
Conclusion:
All the given options have pairs of prime numbers that satisfy the condition of being twin primes. Therefore, the correct answer is option 'B', which states that 21 and 23 are twin primes. However, this is incorrect as 21 is not a prime number. Therefore, option 'B' is the incorrect pair of twin primes.
Correct Answer: B) 21, 23
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Community Answer
Which among the following is incorrect pain of twin primes?a)17, 19b)2...
21 and 23 is wrong i.e. b is the correct option as 21 is a composite number because the factors are 1,3,7 and 21
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Which among the following is incorrect pain of twin primes?a)17, 19b)21, 24c)29, 31d)41, 43e)None of theseCorrect answer is option 'B'. Can you explain this answer?
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