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That's an infinite list. Numbers with three factors are the squares of prime numbers.

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11y ago
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11y ago

3, 6, 9, 12, 15 and just keep adding three until you get to infinity.

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11y ago

All prime squares have just three factors. Example: 9, 25

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10y ago

Squares of prime numbers

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Q: What are all the numbers that have three factors?
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Related questions

What are three factors that has the numbers 2 4 and 8?

Factors don't have numbers. Numbers have factors. Numbers that have the factors 2, 4 and 8 are 8 and all of its multiples.


numbers with 2 3 5 as factors?

Of the numbers from 1 to 30, only 30 has all three of those numbers as factors.


What numbers have three factors?

Squares of prime numbers have only three factors.


What three things have the numbers 3 5 and 7 in common?

They are all prime numbers. They are all consecutive odd numbers They are all factors of 105


What r the 3 numbers that have 2 4 and 8 as factors?

Calculate the least common multiple of the three numbers. Any multiple of that has all those numbers as factors.


Why do all odd numbers have more prime factors?

They don't. 21 has two prime factors. 42 has three prime factors.


What are the common factors of 20 35 and 45?

The only factors common to all three numbers are... 1 & 5


What are all the numbers less than 100 with exactly 3 factors that are prime?

By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.


Are one two and nine factors?

That depends what number you are trying to find the factors of - all those three numbers are factors of the number 18.


Numbers that have three or more factors?

Composite numbers


What do say for numbers which have exactly 3 factors?

Numbers with exactly three factors are squares of prime numbers.


How can you tell the next square number with only three factors?

The numbers with only three factors are squares of prime numbers.