No. If you multiply any Prime number (such as 2, 3, 5, 7, or 11) by 1, you will get a prime number.
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Neither. Prime number or composite numbers should be whole numbers, not fractions.
No. It IS true that every whole number is either prime or composite. But there are numbers that are not whole numbers, such as 2.5, which are neither prime nor composite.
Composite. All whole numbers ending in four are composite.
Well a composite number is a number that can divided into a whole number. 1996 can be divided by 2 which is a whole number, so yes! 1996 is a whole number.
Composite. All whole numbers ending in zero are composite.