Not a lot. They're both prime numbers. A factor that is prime is used to make other numbers.
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That's a prime factor.
13 is a prime number. The only prime factor of a prime number is the number itself.
Not necessarily. 71 is a prime number, 7 is a prime number, and 71-7= 64, which is NOT a prime number. In most cases, the difference of two prime numbers will not be a prime number. All prime numbers greater than 2 will be odd numbers. The difference between two odd numbers will be an even number. Unless that even number is 2, it is not a prime number. Here are some additional examples: 19, 13: difference 6, not prime 23, 7: difference 16, not prime 53, 31: difference 22, not prime 61, 59: difference 2, prime 113, 109: difference 4, not prime 293, 283: difference 10, not prime 331, 101: difference 230, not prime
Well, the factors of a prime number is that they only have two factors.
A prime number has only one prime factor, and that prime factor is the number itself.