2 x 2 x 3 x 3 x 5 = 180
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Numbers with only two factors, the number itself and one, are called prime numbers. Examples of prime numbers are 2 (which is the only even prime number) and 17.
Yes, all prime numbers have only two factors
Numbers that have more than two factors are not prime numbers because prime numbers have only two factors.
Prime numbers have only two factors.
No because whole numbers that have only two factors are prime numbers