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### Which of the following is prime number 703, 731, 797, 729 ____________________________________

```    797 is Prime number
```
##### Explanation

What is a prime number?
A number is greater than 1 is called a prime number, if it has only two factors, 1 and the number itself.

###### Find a large number "A" is prime number or not (MATH PRIME NUMBER SHORTCUT TRICK By using Square Root method)

* 703 is divisible by 1, 703. During keep checking of 703 is not divisible by 2, 3, 5, 7, 11, 13, 17 but 703 is divisble by 19. So 703 has more than two factors therefore 703 is not prime number.

* 729 is divisible by 1, 729 also divisible by 3. No need to check further because 729 is divisible by 3. Now 729 has more than two factores therefore 729 is not prime number

```* 797 is divisible by only 1, 797
797 is prime number.
```

* 771 is divisible by 1, 771 also divisible by 3. No need to check further because 771 is divisible by 3 so it is not prime number

```797 is only prime number.
```

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##### SHORTCUT TRICKS (Division)
• Divisible by 2 Shortcut trick
• Divisible by 3 Shortcut trick
• Divisible by 4 Shortcut trick
• Divisible by 5 Shortcut trick
• Divisible by 6 Shortcut trick • Divisible by 7 Shortcut trick • Divisible by 8 Shortcut trick • Divisible by 9 Shortcut trick
• Divisible by 10 Shortcut trick

##### Worksheets (Solved)

###### Integration     