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There are an infinite number of them. 8 has three prime factors, 30 is the first with three distinct prime factors.

Q: What numbers have exactly 3 different prime factors?

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A prime number is a positive integer that has exactly two different factors: 1 and itself. This is why 1 is not a prime number: it has the factors 1 and itself, but they are the same - it does not have exactly two different factors.

Prime numbers.

Take any 5 prime numbers and multiply them together.

Prime numbers have exactly two factors. 53 and 59 are prime numbers.

Any number of the form a*b^4 where a and b are different prime numbers, or c^9 where c is a prime, will have exactly 10 factors.

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A prime number is a positive integer that has exactly two different factors: 1 and itself. This is why 1 is not a prime number: it has the factors 1 and itself, but they are the same - it does not have exactly two different factors.

Yes.

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

Squares of prime numbers have exactly three factors.

That is correct -- all prime numbers have exactly two factors.

Numbers with exactly three factors are squares of prime numbers.

None. Prime numbers only have two factors.

Prime numbers have exactly two factors.All prime numbers have only 2 factors whereas composite numbers have more than 2 factors

Prime numbers.

Take any 5 prime numbers and multiply them together.

Prime numbers have exactly two factors. 53 and 59 are prime numbers.

All numbers that are the square of primes have exactly 3 factors.