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Question
State which of the following statement are true and which are false. Justify your answer.
28 ∈ {y | the sum of the all positive factors of y is 2y}
Options
True
False
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Solution
This statement is True.
Explanation:
Since, the sum of positive factors of 28
= 1 + 2 + 4 + 7 + 14 + 28
= 56
= 2(28)
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