14 and 28 are two even numbers between 10 and 30 whose greatest common factor is 14.
All even numbers are composite, because 2 is a factor of every even number.
No. 24 has 3 as a factor. 30 has 15 as a factor.
If you are including 10 and 30 there are 11 even numbers. If you are not counting 10 and 30 there are 9 even numbers between 10 and 30.
21 and 28
the only factor (divisor) between 30 and 64 are 2, this is also a factor of 42 & 196 working upwards: 1 is always a factor of integers 2 is a factor of all even numbers 3 is a factor of 30 & 42, but not 64 or 196 4 is a factor of 64 & 196, but not 30 or 42 5 is a factor of 30, but not the others 6 is a factor of 30 & 42, but not 64 or 196 7 is a factor of 42, but not the others 8 is a factor of 64, but not the others 9 is not a factor of any of the numbers 10 is a factor of 30, but not the others I could continue, but it gets worse from there, with only occasional numbers being factors...
40, 50 and 60
Even numbers are integers that are divisible by 2. Between 1 and 30, the even numbers are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30. These numbers can be obtained by starting from 2 and adding 2 successively until reaching 30.
The even numbers between 26 and 36 are 28, 30, 32, and 34.
There aren't any. 2 is the only even prime number, so no other even numbers can be prime. There can be no even numbers between 30 and 50 that are prime.
36
21 and 28.