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Which of the following numbers are prime? 51 ?????????????

Which of the following numbers are prime? 
51 ?????????????

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years ago
Dear Student

51
1 × 51 = 51
3 × 17 = 51
Therefore 51 has four factors 1, 3, 17 and 51.
Hence, it is not a prime number, it is a composite number.

Thanks

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