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

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

Why are the numbers between 1 and 50 prime?

Because the prime numbers between 1and 50 only have exactly 2 unique factors.


What are the factors of 1and 4?

Only common is one only


What is the relationship between factors and prime numbers?

All prime numbers have only two factors, one and themselves.


What are the composite numbers between 1 and 130?

They are the numbers that have more than two factors whereas prime numbers have only two factors


What are composite numbers between 50 and 75?

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


What are composite numbers between 50 and 100?

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What are the composite numbers between 26 to 75?

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What numbers between 1 and 100 are factors of 101?

Only 1.


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Why are 61 and 67 the only numbers between 60 and 70?

Because they are both prime numbers which means that they have only 2 factors


Numbers with only 2 factors are called?

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.


Numbers between fifty and one-hundred with nine factors?

In that range, only 100 has exactly 9 factors.