Question: After reviewing problem a & b: For each natural number n, let Dn= {d |d N and d divides n with no remainder}. a. Find

After reviewing problem a & b:

For each natural number n, let Dn= {d |d N and d divides n with no remainder}.

a. Find D0, D6, D12, and D18.

b. Verify that D12 D18= D6.

Prove or disprove:

If k | m and k | n, then Dm Dn = Dk

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