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If the square of an integer (x) is divisible by (3), then (x) is divisible by what?
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Answer and explanation
Correct answer: (3)
If prime factor (3) divides a square, it divides the number too. Therefore (x) is divisible by (3).
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What is the correct answer to this question?
(3)
Why is this the correct answer?
If prime factor (3) divides a square, it divides the number too. Therefore (x) is divisible by (3).
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Proof of irrationality of square root 2 and square root 3.
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