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

Q: What are 3 numbers less than 50 with 2 factors?

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The numbers for which the sum of its proper factors is 1 less than the number is the powers of 2; less than 50 these are: 2, 4, 8, 16 & 32.

4,27,and38

100

Every prime number has exactly two factors. They are '1' and the number itself. There are 15 prime numbers less than 50. A few of them are 2, 3, 5, 7, 11, 13, and 47.

positive square numbers less than 50 are 7 these are : 1,4,9,16,25,36,49.These are less than 50.

Related questions

4, 9, 25 and 49 They are squares of prime numbers.

49, 25

The numbers for which the sum of its proper factors is 1 less than the number is the powers of 2; less than 50 these are: 2, 4, 8, 16 & 32.

4,27,and38

There are 15 prime numbers less than 50

100

Every prime number has exactly two factors. They are '1' and the number itself. There are 15 prime numbers less than 50. A few of them are 2, 3, 5, 7, 11, 13, and 47.

positive square numbers less than 50 are 7 these are : 1,4,9,16,25,36,49.These are less than 50.

4, 9, 25, 49

4, 9, 25 and 49 They are squares of prime numbers.

Nothing special. They are squares of prime numbers.

A number is prime if its only two factors are one and itself.