0 reads0 ratings0 helpful
If (n=2^5\times3^4\times7^3), by which smallest number should (n) be divided to make it a perfect cube?
Advertisement
Answer and explanation
Correct answer: (2^2\times3)
Step 1: In a perfect cube, every exponent must be a multiple of 3. Step 2: Reduce (2^5) to (2^3) by dividing by (2^2), and reduce (3^4) to (3^3) by dividing by 3. Step 3: So the smallest divisor is (2^2\times3).
Frequently asked questions
What is the correct answer to this question?
(2^2\times3)
Why is this the correct answer?
Step 1: In a perfect cube, every exponent must be a multiple of 3. Step 2: Reduce (2^5) to (2^3) by dividing by (2^2), and reduce (3^4) to (3^3) by dividing by 3. Step 3: So the smallest divisor is (2^2\times3).
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Fundamental Theorem of Arithmetic.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement