Practice Finding Square Root Through Prime Factorisation (5.5.3)

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the prime factorization of 16?
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Think of which number multiplied by itself gives 16.
Question 2.
Is 49 a perfect square?
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Look for pairs in the factorization.
3Question 3.
What is the square root of 144?
- 10
- 12
- 14
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Think of the factors of 144.
4Question 4.
True or False: The number 45 is a perfect square.
- True
- False
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Check the prime factorization of 45.
Question 5.
Find the smallest multiple of 72 that is a perfect square and the square root of that number.
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Consider the prime factors of 72 and what factors you need to pair.
Question 6.
Prove whether 2250 is a perfect square by using prime factorization.
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Look for unpaired primes in the factorization.

4 more questions in this section. Enroll free to practise them all.