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Question

Answer:

Q. Find whether the number 2 × 3 × 5× 7× 11 + 5 a prime or composite? Justify your answer.

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Solution

Dear student
Let x=2×3×5×7×11+5 be the given number.So, x=2310+5=2315x=2315Now the factors of 2315 are :1, 5,463,2315Since the given number has more than 2 factors so it is a composite number.
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