7, 17, 37, 47.You can get this from any table of prime numbers.
Themselves because they are all prime numbers.
5 and 7 are both prime numbers.
Both are ending by 5, then they can be divided by 5, thus they are not prime numbers
7 is a prime number but 9 is a composite number
7, 17, 37, 47.You can get this from any table of prime numbers.
All prime numbers ending in 1, 3, 7 or 9. For example, 31 and 71 23 and 43 17 and 47 19 and 79.
Themselves because they are all prime numbers.
5 and 7 are both prime numbers.
Both are ending by 5, then they can be divided by 5, thus they are not prime numbers
7 is a prime number but 9 is a composite number
The prime numbers from 1 to 7 are 2, 3, 5 and 7.
from 7 to 19 the prime numbers are 11, 13, and 17
3, 7 and 11 are prime numbers.
7 is a prime number; its only prime factor is 7.
Prime numbers like 2, 3, 5 and 7.
7 and 3 are prime numbers but 21 is a composite nuber