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Earn +20 ptsQ: What numbers between 1 and 20 only have 2 factors?
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What numbers below 20 have 2 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.
What numbers between 1and 20 only have 2 factors?
The prime numbers: 2, 3, 5, 7, 11, 13, 17 and 19.
What do the numbers 63 20 and 30 all have in common?
They are all positive two-digit whole numbers between 15 and 65. As to factors, only 1.
How many integers between 20 and 30 are prime?
The numbers 23 and 29 are the only prime numbers between 20 and 30
What is the prime numbers of 20-30?
Prime numbers only have factors of 1 and themselves: 23, 29
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