Prime squares
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
The square of any prime number has exactly three factors: 22, 32, 52, etc.
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Well, If we looked at this way: (224) = 16777216, so this number has exactly 24 factors. (324) = 282429536481, so this number has exactly 24 factors. (510)(210)(34) = 810000000000, so this number has exactly 24 factors.
A number has exactly three factors if and only if it is the square of a prime number.
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
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.
Prime squares
9801.
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