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Earn +20 ptsQ: What are all the perfect numbers between 20 and 30?
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What are the perfect numbers between 1 and 20?
Just 6
How many numbers between 20 and 30 are perfect square?
4
Which whole numbers have square roots between 1 and 20?
All whole numbers between 1 and 400 (=20 square).
Are 20-28 composite numbers?
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.
What are all the prime numbers between 0-20?
2,3,5,7,11,13,17,19
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