Yes, 13, 17, 19, 23, 29
If you can only use each one once: 2, 47, 61, 59, 83
None. 251 is a prime number.
No, for example you can't create the number 65, which is not a prime number, by adding any two prime numbers.
A mirror prime.
There is a difference of 95 when the prime number 2 is subtracted from the prime number 97.
Not a lot. They're both prime numbers. A factor that is prime is used to make other numbers.
2, 3, 5, 7, 9
Numbers cannot "make" another number prime. If you are looking for the prime factorization of 56, it is 23 * 7.
i think prime numbers
By dividing it by a number that will make the outcome prime.
None. 251 is a prime number.
The concepts of "prime numbers" and "composite numbers" make sense for integers (whole numbers), not for arbitrary real numbers.
No, for example you can't create the number 65, which is not a prime number, by adding any two prime numbers.
7 is a prime number; its only prime factor is 7.
A mirror prime.
There is a difference of 95 when the prime number 2 is subtracted from the prime number 97.
Not a lot. They're both prime numbers. A factor that is prime is used to make other numbers.
23 is a prime number. Prime numbers are numbers that when multiplying only 1 and itself make it. Nothing but 1 and 23 equals 23 so 23 is a prime number.