Five: 1, 2, 4, 8 and 16.
1 and 31, it is a prime number.
A prime number is a whole number that has only two distinct factors: 1 and the number itself. A composite number has at least three distinct factors.
30
Nine distinct factors: 1 2 3 4 6 9 12 18 36.
Five: 1, 2, 4, 8 and 16.
A composite number is a number that is not a prime number, ie it has more than two distinct factors. The factors of 25 are 1, 5, 25 - three distinct factors.
1 and 31, it is a prime number.
A prime number is a whole number that has only two distinct factors: 1 and the number itself. A composite number has at least three distinct factors.
The factors of 20 are 1, 2, 4, 5, 10, 20 The distinct prime factors are 2 and 5.
Two: 1 and 97.
30
Nine distinct factors: 1 2 3 4 6 9 12 18 36.
100 has 9 distinct factors, which are: 1, 2, 4, 5, 10, 20, 25, 50, 100
3 is a prime number because it has exactly two distinct factors. The only factors of a prime number are 1 and itself. The only factors of 3 are 1 and 3, so it is a prime number.
Itself and one because 2 is a prime number
A prime number. Strictly speaking, a prime number is required to have exactly two distinct factors, namely 1 and itself. The number 1 has only one [distinct] factor (1 = 1 x 1 - only 1 factor: 1) and so 1 is not a prime number; the first prime number is 2 (2 = 1 x 2 - two factors: 1 & 2).