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Q: What numbers has only 2 factors?

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Numbers that have only 2 factors are prime numbers

No because only prime numbers have 2 factors whereas composite numbers have more than 2 factors

Numbers having only 2 factors are prime numbers. Their only factors are 1 and themselves. Prime numbers. The only two factors should be 1 and itself.

Prime numbers have only two factors.

A number will always have 1 and itself as factors. And thus the only numbers with 2 factors will be prime numbers. The only prime numbers below 20 are 2, 3, 5, 7, 11, 13, 17 and 19, and thus these are the only numbers below 20 that have 2 factors.

All prime numbers have only two factors.

2 and 1 are the only factors of 2

Prime numbers

Prime numbers.

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

If they are prime numbers only 2 factors but if they are composite number they will have more than 2 factors

Prime numbers have only 2 factors while composite numbers have more than 2 factors

All prime numbers have only 2 factors. A prime number has 1 and itself as its only factors.

All numbers have 2 factors in that they can all evenly divide by 1 and themselves. If a number has only 2 factors, then it is prime. The first 3 prime numbers are 2, 3 and 5.

They are: 41, 43 and 47 that have only 2 factors because they are all prime numbers

Prime numbers have only two factors.

2 and 3 are the prime factors of 36. Of the factors of 36, 2 and 3 are the only prime numbers.

Prime numbers have only two factors.

No because composite numbers have more than two factors whereas prime numbers have only two factors.

Among the factors of 28, 2 and 7 are the only prime numbers.

Prime numbers have only 2 factors which are themselves and one

42, 48 are the two numbers bigger than 40 that have 2 and 3 as their only prime factors.

89 is a prime number. Prime numbers only have 2 factors. Composite numbers have over 2 factors.

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.

All prime numbers have only 2 factors which are themselves and one. Al prime numbers are odd numbers except for 2 which is the only even prime number.