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Earn +20 ptsQ: Is the number 21 abundant or deficient or perfect?
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What are non-perfect square numbers?
Non-perfect square numbers are numbers that are not formed from the square of a number. 12, 13, 14, 21, 99, etc, are all non-perfect square numbers because when you square root them you do not get a whole number, which means they are not formed by any whole number, x, being squared (x^2).
How many perfect cubes are between 1 to 10000?
Including 1, there are 21 perfect cubes between one and ten thousand. These are: 1, 8, 27, 64, 125, 216, 343, 512, 729, 1000, 1331, 1728, 2197, 2744, 3375, 4096, 4913, 5832, 6859, 8000, 9261.
What is 21 over 10 as a mixed number?
21 over 10 as a mixed number is 21/10
What are the divisors of the number 21?
The divisors of 21 are: 1, 3, 7, 21.
Which number should come next in the series 8 13 21 26 31?
the answer will be 21
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