4
It is: 97 minus 11 = 86
2 and 3 are the first two prime numbers. The difference between them is 1
All prime numbers are odd numbers, except for the number 2. The difference between two odd numbers must be a multiple of 2. So, if the difference between two prime numbers is another prime number, that difference must be 2.Examples:{3, 5}{5, 7}{11, 13}{29, 31}
11 and 7 have a difference of 4.
Multiples aren't prime.
solution: we know that there are 25 prime numbers are between 1-100 and 168 prime numbers less than 1000. 100 x 100=10000(5 digits) 999 x 999=998001(6 digits) 1000 x 1000=1000000(7 digits) so our answer should be same as the number of prime numbers between 100 to 999. hence, 168-25=143. 143 prime numbers will be there less than 1000 whose square has 5 or 6 digits.
It is: 73 of which 7 and 3 are both prime numbers
Any two prime numbers, of about 200 digits each, would work.Any two prime numbers, of about 200 digits each, would work.Any two prime numbers, of about 200 digits each, would work.Any two prime numbers, of about 200 digits each, would work.
73 is the largest two-digit number that is prime and has prime numbers for both of its digits.
Any prime numbers greater than 2 will be odd numbers. The difference between two odd numbers will be an even number. So, the difference between two prime (and odd) numbers could be 2, 4, or 6, of the numbers given. The difference could not be 3, 5, or 7.
Yes. As infinity is so vast, and massive.. well infinite to be honest, there are also infinite prime numbers. The only difference is that they are few and far between. For instance, in low digits, they occur a lot more frequently (2, 3, 5, 7, 11, 13, 17) And that's just in the space of 20 numbers. However, as they get bigger, the gaps between them are much larger. Currently, the highest know prime number is [(243112609) -1], a number 12978189 digits long. (For some perspective 1,000,000,000,000 is only 13 digits) The prime number right below that is [(237156667)-1] and is only 11185272 digits long. Therefore, the higher prime numbers get, the further apart they are.
The maximum difference is 8, between 89 and 97.