Open Question: is 4 a prime number or not?
17:56 Publicado por Anónimo
No. A prime number can only be divided by 1 and itself. So it has no other factors.
4 can be divided by 2, so it is therefore NOT a prime number.
Some prime numbers are 1, 3, 5, 7, 11, 13, 17, 19, 23, 27...
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