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The question is "13, 17, 21, 23, 29 one of the numbers is different from the rest, which one and why?" step by step explanation
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The question is "13, 17, 21, 23, 29 one of the numbers is different from the rest, which one and why?"

step by step explanation

User Otmezger
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1 Answer

5 votes

Answer:

21

Explanation:

it is not a prime number, according to prime number only the number and 1 can it be divided but here 21 can be divided by 1,3,7 and 21 itself. Therefore others are prime number except 21

User Danja
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