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Which number is not a composite number 17, 15, 14, 18,
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Which number is not a composite number 17, 15, 14, 18,

User Neil Slater
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1 Answer

2 votes

Answer:

The answer is 17-all others are prime.

Explanation:

17's factors are 17&1

The others are

15: (3,5) & (15,1)

14:(7,2) & ( 14.1)

18:(6,3), (9,2) & (18,1)

User Bondsmith
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