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What type of number is a negative number?
Any number that is less than 0. Any rational irrational or integral number that is less than 0 is considered negative.
Is 11 a factor of 9?
Every number except zero is a factor of every other number. Usually this kind of question is intended as a question about integral factors, those that can be paired with another integer to produce the number as a product. In that sense, 9 is not an integral factor of 11, because the paired number with 9 is 11/9, a number that is not an integer.
Is the number 47 a prime number?
Yes. 47 is a prime number because no positive integral number less than 47 apart from 1 divides without remainder into 47.
Are all multiples of abundant numbers abundant?
Yes, this is well known. All integral multiples of any perfect, or abundant number must be an abundant number.
What number is a power of 2 greater than 4?
8 is the smallest INTEGRAL power of 2 which is greater than 4.
