Answer:
Explanation:
This is a super question to know the answer to.
Step One
Find the square root of 1147
The √1147 = 34
So you have to check the primes up to 34
2 3 5 7 11 13 17 19 23 29 31 The other odd numbers up to 34 have already been checked.
You have 11 primes, but some of them can be eliminated without do any division.
2 is even. 1147 is not. So 2 is not a factor
3 1147 adds to 13. 13 is not divisible by 3. Neither is 1147
5 1147 does not end in 0 or 5. 5 is not a factor
7 is not a factor. There is a fraction left over when 1147 is divided by 7
1147 cannot be evenly divided by 11 because 47 is not divisible by 11.
1147 / 13 = 88. something. Not divisible by 13
1147 / 17 = 67 and a remainder. 1147 is not divisible by 17
1147 / 19 = 60 and a remainder. 1147 is not divisible by 19
1147 / 23 = 49 and a remainder. 23 is not a factor of 1147
1147 / 29 = There's a remainder here. 29 is not a factor
1147/31 = This is an even division. You get 37 another prime
1147 is not prime
1147 = 31 * 37 After all that work ...