The number 9: factors are 9, 3, and 1.
6. Factors are 1, 2, 3, and 6.
The smallest number with exactly eight factors is 24.
30 has exactly 8 factors 1,2,3,5,6,10,15,30
A prime number is a whole number with exactly two factors: 1 and itself.
A number has exactly three factors if and only if it is the square of a prime number.
The square of a prime number.
Prime squares
625 has five factors.
The number 9: factors are 9, 3, and 1.
The smallest number that has exactly three factors is 4.
The square of any prime number has exactly 3 factors. They are: 1). 1 2). the number itself 3). the prime number which is its square-root
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.
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
A prime number, like 2, 3 or 5.
6. Factors are 1, 2, 3, and 6.
The square of any prime number has exactly three factors: 22, 32, 52, etc.