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Earn +20 ptsQ: Why do they call 1 a prime number?
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What do you call a number with only 1 prime factor?
a prime number
Why does mathematicians decide not to call 1 a prime number?
1 is not a prime number because it can be evenly divided by itself and by 1, the opposite as per the definition of a prime number.
What do you call a number when it only has 1 factor?
If you mean what do you call a number with only 1 and itself as factors, then it is a prime number.
What do you call any whole number greater than 1 that is not a prime number?
A composite number.
Why did mathematics decide to not call 1 a prime number?
Because a prime number has two factors whereas 1 has only one factor which is itself
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