Study guides

☆☆

Q: What numbers between 1 and 20 only have 2 factors?

Write your answer...

Submit

Still have questions?

Continue Learning about Basic Math

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.

The prime numbers: 2, 3, 5, 7, 11, 13, 17 and 19.

They are all positive two-digit whole numbers between 15 and 65. As to factors, only 1.

Prime numbers only have factors of 1 and themselves: 23, 29

The numbers 23 and 29 are the only prime numbers between 20 and 30

Related questions

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.

They are the only ones with just two factors.

All of them except 23 and 29 which are prime numbers having only two factors

Prime numbers in that range include 11, 13, 17 and 19.

48

1 and 5 are the only numbers that are factors of 20, 35, and 45.

Prime numbers between the given numbers are 23 and 29

All of the odd numbers in that range can be factors.

They are the numbers that have more than two factors in them.

The prime numbers: 2, 3, 5, 7, 11, 13, 17 and 19.

The prime numbers: 2, 3, 5, 7, 11, 13, 17, 19

1, 2, 4, 5, 10, 20

People also asked