43 is the only prime number in that list; 33 and 63 are both divisible by 3.
47 is a prime number - but 63 is not a prime number.
7 since 7 goes into 63 and 140 evenly and 7 is a prime.
63 is not a prime number because 9 times 7 is 63. A prime number is a number that can be divided into 1 or itself
No,Both have equal number of Prime factors.
The greatest prime factor of 40 is 5. The greatest prime factor of 63 is 7. They do not have any prime factors in common.
No, as 63 = 7 x 9 and then is not a prime number
63 is not a prime number.
There isn't a prime number between 63 and 65