A:
Positive:
1 x 1404442137 x 2006345913 x 1080340191 x 15433431129 x 1243971367 x 1027397903 x 177719569 x 14677
Negative:
-1 x -140444213-7 x -20063459-13 x -10803401-91 x -1543343-1129 x -124397-1367 x -102739-7903 x -17771-9569 x -14677
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 140,444,213, 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 | 140,444,213 | |
| -1 | -140,444,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,444,213.
Example:
1 x 140,444,213 = 140,444,213
and
-1 x -140,444,213 = 140,444,213
Notice both answers equal 140,444,213
With that explanation out of the way, let's continue. Next, we take the number 140,444,213 and divide it by 2:
140,444,213 ÷ 2 = 70,222,106.5
If the quotient is a whole number, then 2 and 70,222,106.5 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 | 140,444,213 | |
| -1 | -140,444,213 |
Now, we try dividing 140,444,213 by 3:
140,444,213 ÷ 3 = 46,814,737.6667
If the quotient is a whole number, then 3 and 46,814,737.6667 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 | 140,444,213 | |
| -1 | -140,444,213 |
Let's try dividing by 4:
140,444,213 ÷ 4 = 35,111,053.25
If the quotient is a whole number, then 4 and 35,111,053.25 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 | 140,444,213 | |
| -1 | 140,444,213 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 1,129 | 1,367 | 7,903 | 9,569 | 14,677 | 17,771 | 102,739 | 124,397 | 1,543,343 | 10,803,401 | 20,063,459 | 140,444,213 |
| -1 | -7 | -13 | -91 | -1,129 | -1,367 | -7,903 | -9,569 | -14,677 | -17,771 | -102,739 | -124,397 | -1,543,343 | -10,803,401 | -20,063,459 | -140,444,213 |
Here are some more numbers to try:
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