Best Answer

A Prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 43 is a prime number.

Q: Which is a prime number 33 43 or 63?

Write your answer...

Submit

Still have questions?

Continue Learning about Basic Math

43

43 is a prime number because it has exactly two factors, 1 and 43. 33 and 63 each have 3 as a factor as well as 1 and themselves, so they are composite numbers.

63 has the factors 1, 3, 7, 9, 21, 63 43 is a prime number because there are no numbers that can divide into one and itself.

There isn't a prime number between 63 and 65

63

Related questions

43 is the prime number.

43 is the only prime number in that list; 33 and 63 are both divisible by 3.

43

43 is a prime number because it has exactly two factors, 1 and 43. 33 and 63 each have 3 as a factor as well as 1 and themselves, so they are composite numbers.

43 is a prime number. 3 x 3 x 7 = 63

97 is a prime number. 33, 63, and 25 are composites.

63 has the factors 1, 3, 7, 9, 21, 63 43 is a prime number because there are no numbers that can divide into one and itself.

19 and 67 are prime numbers.

33 and 55 are divisible by 11. 63 is 7 x 9, so 19 and 67 are the prime numbers.

47 is a prime number - but 63 is not a prime number.

No, as 63 = 7 x 9 and then is not a prime number

63 is not a prime number.