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Earn +20 ptsQ: Which is a composite Number 15 17 19 or 23?
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What number is composite 15 17 19 0r 23?
15 has more than exactly two factors (1, 3, 5, and 15), therefore it is composite. 17, 19, and 23 each have exactly 2 factors (1 and the number itself), so they are primes.
A composite number between 25 and 35 has 19 as the sum of its prime factors. What number is it?
The prime factors of 34 are 2 and 17, and 2 + 17 = 19.
Which of the following groups of numbers are all prime numbers A 2 3 5 9 or B 3 11 23 31 or C 2 5 15 19 or D 7 17 29 49?
2, 3, 5, and 9 includes one composite number - 9. 3, 11, 23, and 31 are all prime numbers. 2, 5, 15, and 19 includes one composite number - 19. 7, 17, 29, and 49 includes one composite number - 49.
Is 17 18 19 23 witch is a composite number?
18 (All even numbers except 2 are composite.)
Which is a composite number 19 21 23?
21 is composite.
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