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determine the largest prime no. that u need to test as a divisor to find whether or not 397 is a prime no.

determine the largest prime no. that u need to test as a divisor to find whether or not 397 is a prime no.

Grade:11

1 Answers

Sunny
16 Points
6 years ago
We need to check the prime numbers which are less than or equal to the square root of the number..√397= 20 approx..so we need to check prime numbers upto 19

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