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You know that 7 is a Prime number because it only has two factors.
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Earn +20 ptsQ: How do you know that 7 is a prime number?
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Why 7 is not a prime number?
7 is a prime number!
Is he number 7 a prime number?
The number 7 is a prime number
Is 7 a even prime or composite number?
7 is an odd prime number.
Is the number 7 prime composite or neither?
The Number 7 is a prime number
Is 7 a prime number and a even number?
7 is prime and not even.
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