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Let A = {x : x is a natural number which divides 42}. Set-builder form A in roster form is:
A{2, 3, 6, 7, 14, 21}
B{1, 2, 3, 6, 7, 14, 21, 42}
C{1, 2, 6, 7, 14, 21, 42}
D{1, 2, 3, 6, 14, 21, 42}
Answer & Solution
Correct answer: B. {1, 2, 3, 6, 7, 14, 21, 42}
42 = 2 × 3 × 7. Divisors of 42: 1, 2, 3, 6, 7, 14, 21, 42. All eight included.
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