5 and 7
5 and 7
7*5, both are prime
28
5, 11, 19.
-7 and 5
251
Prime numbers only have two factors, one and themselves. If you multiply two prime numbers together, the new number will also have the two prime numbers as factors, making it composite. Try it out. 5 and 7 are prime. 35 is composite.
The prime numbers from 35 to 60 are 37,41,43,47,53,59.
There are infinitely many numbers. One pair is 70 and 0.5
-37
137
40