36
All even numbers are composite, because 2 is a factor of every even number.
28
30 is the only number between 20 and 50 that is a factor of 60
Any number between 30 and 40 can be a factor. The common factors of 30 and 40 are 1, 2, 5 and 10.
The only even prime number is 2.
All even numbers are composite, because 2 is a factor of every even number.
The greatest prime number between 1 and 30 is 29. 58 has 29 as a factor.
The answer is 2. 2 goes into 30 15 times, so it is a factor of 30.
It is: 29
28
14 and 28 are two even numbers between 10 and 30 whose greatest common factor is 14.
30 is the only number between 20 and 50 that is a factor of 60
31 and 37
Any number between 30 and 40 can be a factor. The common factors of 30 and 40 are 1, 2, 5 and 10.
No. The number 30 is composite and so it cannot be a prime factor.
The only even prime number is 2.
10, 15, 20, 25 and 30