- #1
s3a
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Homework Statement
The problem (and its solution) are attached in TheProblemAndSolution.jpg. Specifically, I am referring to problem (c).
Homework Equations
Set theory.
Union.
Integers.
Prime numbers.
The Attempt at a Solution
I see how we have all multiples of all prime numbers in the union of the sets, but I can't see how “every positive integer except 1 is a multiple of at least one prime number”. If I could intuitively grasp the sentence I just quoted, then I can see how to get to the final result.
Any help in getting me to intuitively understand the part I quoted would be greatly appreciated!