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If you mean consecutive numbers that are prime?

than the answer is 2,3 are consecutive numbers which are prime.

except for this pair it is impossible for consecutive numbers to be prime because every second number is multiple of 2

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โˆ™ 2012-05-14 15:56:32
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Q: Why can there never be a pair of consecutive prime numbers that are both prime?
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How are 2 and 3 consecutive prime numbers?

2 and 3 are consecutive numbers and they are both prime.


The consecutive numbers 2 and 3 are both prime how do you know that there are no other consecutive prime numbers?

Because one of them would necessarily be even, and therefore divisible by 2.


Who do you know that there are no other consecutive numbers besides 2 and 3?

Both prime number


How do you know twin prime number?

You take two consecutive odd numbers and check both of them to see whether they are prime or not.


Find all pairs of consecutive prime numbers?

The only two consecutive numbers that are both prime are 2 and 3. Since there are no other even prime numbers (other than 2), there are no more pairs of consecutive prime numbers. Therefore, the term "twin primes" usually refers to pairs of prime numbers that are 2 numbers apart. Examples are (3, 5), (5, 7), (11, 13), (101, 103), and many others more. It is not currently know whether there are infinitely many twin primes.


Why aren't there any other pairs of consecutive prime numbers?

Ah hah! You didn't say so, but you must be talking about 2 and 3 ... the only two consecutive numbers that are both prime numbers. There can't be any others. Because if you have any other two consecutive numbers, one of them has to be an even number ... divisible by 2. Since that number is divisible by 2, it's not a prime number.


Give two composite numbers that are also prime numbers?

Greater than one, numbers are either composite or prime, never both.


What are the prime numbers for 5 and 13?

Both are already Prime Numbers.5 and 13 are both prime numbers.


Are 45 and 64 prime numbers?

They both are not prime numbers


Why are 2 and 3 consecutive prime numbers?

A prime number is a number only divisible by 1 and itself, since nothing else goes into 2 but 1 and 2 and nothing goes into 3 but 1 and 3 they are both prime and since 3 goes after 2 they are consecutiveAnd they are the ONLY consecutive prime numbers because if you have one prime number (i.e. 29), then there always is an even number right after the prime number (i.e. 30 comes right after 29), and consecutive means "right next to," right? And we all know that even numbers can always be divided in half, so 2 and 3 are the only consecutive prime numbers.1 is not a prime so that (1,2) is not a pair of consecutive integers that are prime. So, if there is another opair of consecutive numbers that are prime, they must be larger than (2,3) - ie the smaller of the pair must be greater than 2.Now any pair of consecutive numbers must have one odd and one even number. Therefore, the candidate pair must contain an even number which is greater than 2. But all even numbers greater than 2 are divisible by 2 and so are composite (non-prime). So every such candidate pair contains an odd number which may or may not be prime, and an even number which is definitely not a prime.


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