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प्रश्न
State if the following is a prime number?
397
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उत्तर
A number between 100 and 200 is a prime number if it is not divisible by any prime number less than 15.
Similarly, a number between 200 and 300 is a prime number if it is not divisible by any prime number less than 20.
397 is a prime number because it is not divisible by 2, 3, 5, 7, 11, 13, 17, and 19.
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संबंधित प्रश्न
Test the divisibility of the following number by 2:
2650
Test the divisibility of the following number by 2:
357986
Test the divisibility of the following number by 4:
35056
Test the divisibility of the following numbers by 5:
4965
Test the divisibility of the following number by 11:
137269
In the following number, replace * by the smallest number to make it divisible by 3:
27*4
In the following number, replace * by the smallest number to make it divisible by 3:
234*17
Write (T) for true and (F) for false against the following statement:
If a number divides the sum of two numbers exactly, it must exactly divide the numbers separately.
Find the least number divisible by 15, 20, 24, 32, and 36.
Which of the following numbers is divisible by 6?
(a) 8790432
(b) 98671402
(c) 85492014
(d) none of these
