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What do you call one if it is not a prime or composite number?
The property of prime or composite is not defined for the number 1, just as it is not defined for any number that has a fractional part. There are no special names for numbers that are not prime nor composite.
Why number 1 is a special number?
One is a special number because it is neither prime nor composite. It only has one factor, which is one. It can also be multiplied to any number to not change the product from the original number.
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.
Is 1331 a prime number?
Oh, dude, 1331 is not a prime number. It's like the opposite of a prime number, you know? It's actually 11 raised to the power of 3, which makes it a perfect cube. So, yeah, it's not a prime number, but hey, at least it's special in its own nerdy math way.
Which odd numbers are not prime numbers?
A prime number is any number that only has one and itself as factors. Therefore, any number that has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.
