43 is the only Prime number in that list; 33 and 63 are both divisible by 3.
Among the numbers 23, 33, 43, and 63, only 33 and 63 are composite. A composite number has more than two distinct positive divisors, while prime numbers have exactly two. Both 23 and 43 are prime, while 33 (divisible by 1, 3, 11, and 33) and 63 (divisible by 1, 3, 7, 9, 21, and 63) have additional divisors.
97 is a prime number. 33, 63, and 25 are composites.
19 and 67 are prime numbers.
47 is a prime number - but 63 is not a prime number.
63 is not a prime number.
43 is the prime number.
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.
Among the numbers 23, 33, 43, and 63, only 33 and 63 are composite. A composite number has more than two distinct positive divisors, while prime numbers have exactly two. Both 23 and 43 are prime, while 33 (divisible by 1, 3, 11, and 33) and 63 (divisible by 1, 3, 7, 9, 21, and 63) have additional divisors.
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.
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.
63 is not a prime number.