Question

Are 0 & 1 Prime or Composite numbers?

Answer 1

Neither 1 or 0 are prime or composite.

Answer 2

Well what would I put for this problem then? :
The zip code of a location consists of five digits chosen from the set D shown below.
D = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

The set M represents the digits in one of the zip codes for Miami.
M = {3, 3, 1, 9, 0}

The set C represents the digits in one of the zip codes for Cooper City.
C = {3, 3, 3, 3, 0}

How many prime numbers are in the set M(U)C ?

Answer 3

I know 3 is prime..so thats 1, then 9 is not prime, and i had no idea what to do about 1 & 0

Answer 4

Yea, 1 and 0 are not prime :) The reason been
One is neither a prime nor a composite number. A prime number is one
with exactly two positive divisors, itself and one. One has only one
positive divisor. It cannot be written as a product of two factors,
neither of which is itself, so one is also not composite. It falls
in a class of numbers called units. These are the numbers whose
reciprocals are also whole numbers.

Zero is not a prime or a composite number either. Zero has an infinite
number of divisors (any nonzero whole number divides zero). It cannot
be written as a product of two factors, neither of which is itself, so
zero is also not composite. It falls in a class of numbers called
zero-divisors. These are numbers such that, when multiplied by some
nonzero number, the product is zero.

So your answer is just 1 prime number

Answer 5

Thank you! That question really confused me :)