A:
Positive:
1 x 7116254929 x 245388143 x 1654943149 x 477601383 x 1858031247 x 570674321 x 164696407 x 11107
Negative:
-1 x -71162549-29 x -2453881-43 x -1654943-149 x -477601-383 x -185803-1247 x -57067-4321 x -16469-6407 x -11107
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 71,162,549, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 71,162,549 | |
| -1 | -71,162,549 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 71,162,549.
Example:
1 x 71,162,549 = 71,162,549
and
-1 x -71,162,549 = 71,162,549
Notice both answers equal 71,162,549
With that explanation out of the way, let's continue. Next, we take the number 71,162,549 and divide it by 2:
71,162,549 ÷ 2 = 35,581,274.5
If the quotient is a whole number, then 2 and 35,581,274.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 71,162,549 | |
| -1 | -71,162,549 |
Now, we try dividing 71,162,549 by 3:
71,162,549 ÷ 3 = 23,720,849.6667
If the quotient is a whole number, then 3 and 23,720,849.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 71,162,549 | |
| -1 | -71,162,549 |
Let's try dividing by 4:
71,162,549 ÷ 4 = 17,790,637.25
If the quotient is a whole number, then 4 and 17,790,637.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 71,162,549 | |
| -1 | 71,162,549 |
If you did it right, you will end up with this table:
| 1 | 29 | 43 | 149 | 383 | 1,247 | 4,321 | 6,407 | 11,107 | 16,469 | 57,067 | 185,803 | 477,601 | 1,654,943 | 2,453,881 | 71,162,549 |
| -1 | -29 | -43 | -149 | -383 | -1,247 | -4,321 | -6,407 | -11,107 | -16,469 | -57,067 | -185,803 | -477,601 | -1,654,943 | -2,453,881 | -71,162,549 |
Here are some more numbers to try:
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