Only 1: itself.
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.
Oh, dude, the positive difference between the number of distinct prime factors of 15 squared (225) and 64 cubed (262,144) is like 4. Prime factors are like those VIP numbers that can't be divided by anything except 1 and themselves. So, 225 has 2 distinct prime factors (3 and 5), and 262,144 has 1 distinct prime factor (2). Subtract 1 from 2, and you get 1. Wow, math can be fun, right?
Itself and one because 2 is a prime number