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Earn +20 ptsQ: Which of these are composite numbers 4 6 2 8 18 15?
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What are the composite numbers 2-20?
The composite numbers from 2 to 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, and 20.
Is 18 a composite or a prime number?
All even numbers greater than 2 are composite.
Is 18 composite or prime?
The factors of 18 are: 1, 2, 3, 6, 9, and 18.Since there are other factors in addition to '1' and the number itself,the number is composite.18 is a composite number because it has more than 2 factors18 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.18 is not prime; it is composite. 18 = 2 * 3 * 3
Which numbers between 2 and 20 are composite?
They are: 4 6 8 9 10 12 14 15 16 18 and 20 itself and they are all composite numbers because they have more than two factors
What are 2 composite numbers with the greatest common factor of 1?
15 and 16
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