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How many two digit numbers which have three factors? - Answers

The only numbers which have exactly three factors are perfect squares of prime numbers. That only gives us two results: 5^2 = 25 7^2 = 49 The squares of any other prime numbers are either too small or too large to have two digits. (The next smaller Prime number is 3, and the next larger prime number is 11.)



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How many two digit numbers which have three factors? - Answers

https://math.answers.com/algebra/How_many_two_digit_numbers_which_have_three_factors

The only numbers which have exactly three factors are perfect squares of prime numbers. That only gives us two results: 5^2 = 25 7^2 = 49 The squares of any other prime numbers are either too small or too large to have two digits. (The next smaller Prime number is 3, and the next larger prime number is 11.)



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https://math.answers.com/algebra/How_many_two_digit_numbers_which_have_three_factors

How many two digit numbers which have three factors? - Answers

The only numbers which have exactly three factors are perfect squares of prime numbers. That only gives us two results: 5^2 = 25 7^2 = 49 The squares of any other prime numbers are either too small or too large to have two digits. (The next smaller Prime number is 3, and the next larger prime number is 11.)

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      The only numbers which have exactly three factors are perfect squares of prime numbers. That only gives us two results: 5^2 = 25 7^2 = 49 The squares of any other prime numbers are either too small or too large to have two digits. (The next smaller Prime number is 3, and the next larger prime number is 11.)

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