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I will give brainliest
1. which is 256 written as a power of a number?
17^2
64^4 *
32^8
16^2

2. which is a factor of 68?
8 *
17
14
6

3. which number is composite?
23
15
17
19 *

4. which is the prime factorization of 84?
2.3^2.7
2.2^3.7
2.3.7 *
2^2.3^2.7


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Answer :

SuperCatLover2000

1. The answer is 16^2, so B.

16 x 16 = 256

2. The answer is 17, so B.

Some of the factor of 68 are: 1, 2, 4, 17, 34 and 68.

3. The answer is 15, so B.

Only 15 is composite since it contains more than a factor, which are 3 and 5. The rest of the numbers are prime since they only contain a factor.

4. The answer is 2^2^3^7, so B.

The factor tree:

84

2 x 42

2 x 2 x 21

2 x 2 x 3 x 7

Hope this helps! :)

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