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No, the definition of a prime is:
Any number that can only be divided by itself or 1
You say "let's take number A, and multiply it by 2" thus you can also divide it by 2 and it's therefor no Prime number
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Each prime number has exactly factors?
If you consider 1 and the prime number itself as factors then: 2If you do not consider 1 and the prime number as factors then: 0A prime number is one that does not have any factors apart from 1 and itself.
Are there any even prime numbers apart from 2?
No. Every even number is divisible by 1 and 2 so only 2 is prime.
Is 74 prime or composite?
74 is composite The definition of a prime number is one that is only divisible by itself and one, therefore any even number (apart from 2) cannot be a prime number
What are all integer factors of 83?
83 is a prime number and apart from itself and '1' it does not have any other factors.
How do you know without dividing that 91 is not in the prime factorization of 75257?
91 cannot be in the prime factorization of any number because it is not a prime number itself.
