A:
Positive:
1 x 1121654917 x 65979753 x 21163359 x 190111211 x 53159901 x 124491003 x 111833127 x 3587
Negative:
-1 x -11216549-17 x -659797-53 x -211633-59 x -190111-211 x -53159-901 x -12449-1003 x -11183-3127 x -3587
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 11,216,549, 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 | 11,216,549 | |
| -1 | -11,216,549 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,216,549.
Example:
1 x 11,216,549 = 11,216,549
and
-1 x -11,216,549 = 11,216,549
Notice both answers equal 11,216,549
With that explanation out of the way, let's continue. Next, we take the number 11,216,549 and divide it by 2:
11,216,549 ÷ 2 = 5,608,274.5
If the quotient is a whole number, then 2 and 5,608,274.5 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 | 11,216,549 | |
| -1 | -11,216,549 |
Now, we try dividing 11,216,549 by 3:
11,216,549 ÷ 3 = 3,738,849.6667
If the quotient is a whole number, then 3 and 3,738,849.6667 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 | 11,216,549 | |
| -1 | -11,216,549 |
Let's try dividing by 4:
11,216,549 ÷ 4 = 2,804,137.25
If the quotient is a whole number, then 4 and 2,804,137.25 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 | 11,216,549 | |
| -1 | 11,216,549 |
If you did it right, you will end up with this table:
| 1 | 17 | 53 | 59 | 211 | 901 | 1,003 | 3,127 | 3,587 | 11,183 | 12,449 | 53,159 | 190,111 | 211,633 | 659,797 | 11,216,549 |
| -1 | -17 | -53 | -59 | -211 | -901 | -1,003 | -3,127 | -3,587 | -11,183 | -12,449 | -53,159 | -190,111 | -211,633 | -659,797 | -11,216,549 |
Here are some more numbers to try:
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