A:
Positive:
1 x 195494397 x 279277713 x 150380317 x 114996791 x 214829119 x 164281221 x 884591547 x 12637
Negative:
-1 x -19549439-7 x -2792777-13 x -1503803-17 x -1149967-91 x -214829-119 x -164281-221 x -88459-1547 x -12637
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 19,549,439, 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 | 19,549,439 | |
| -1 | -19,549,439 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,549,439.
Example:
1 x 19,549,439 = 19,549,439
and
-1 x -19,549,439 = 19,549,439
Notice both answers equal 19,549,439
With that explanation out of the way, let's continue. Next, we take the number 19,549,439 and divide it by 2:
19,549,439 ÷ 2 = 9,774,719.5
If the quotient is a whole number, then 2 and 9,774,719.5 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 | 19,549,439 | |
| -1 | -19,549,439 |
Now, we try dividing 19,549,439 by 3:
19,549,439 ÷ 3 = 6,516,479.6667
If the quotient is a whole number, then 3 and 6,516,479.6667 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 | 19,549,439 | |
| -1 | -19,549,439 |
Let's try dividing by 4:
19,549,439 ÷ 4 = 4,887,359.75
If the quotient is a whole number, then 4 and 4,887,359.75 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 | 19,549,439 | |
| -1 | 19,549,439 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 17 | 91 | 119 | 221 | 1,547 | 12,637 | 88,459 | 164,281 | 214,829 | 1,149,967 | 1,503,803 | 2,792,777 | 19,549,439 |
| -1 | -7 | -13 | -17 | -91 | -119 | -221 | -1,547 | -12,637 | -88,459 | -164,281 | -214,829 | -1,149,967 | -1,503,803 | -2,792,777 | -19,549,439 |
Here are some more numbers to try:
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