A:
Positive:
1 x 1814457197 x 2592081713 x 1395736383 x 218609391 x 1993909581 x 3122991079 x 1681617553 x 24023
Negative:
-1 x -181445719-7 x -25920817-13 x -13957363-83 x -2186093-91 x -1993909-581 x -312299-1079 x -168161-7553 x -24023
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 181,445,719, 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 | 181,445,719 | |
| -1 | -181,445,719 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 181,445,719.
Example:
1 x 181,445,719 = 181,445,719
and
-1 x -181,445,719 = 181,445,719
Notice both answers equal 181,445,719
With that explanation out of the way, let's continue. Next, we take the number 181,445,719 and divide it by 2:
181,445,719 ÷ 2 = 90,722,859.5
If the quotient is a whole number, then 2 and 90,722,859.5 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 | 181,445,719 | |
| -1 | -181,445,719 |
Now, we try dividing 181,445,719 by 3:
181,445,719 ÷ 3 = 60,481,906.3333
If the quotient is a whole number, then 3 and 60,481,906.3333 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 | 181,445,719 | |
| -1 | -181,445,719 |
Let's try dividing by 4:
181,445,719 ÷ 4 = 45,361,429.75
If the quotient is a whole number, then 4 and 45,361,429.75 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 | 181,445,719 | |
| -1 | 181,445,719 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 83 | 91 | 581 | 1,079 | 7,553 | 24,023 | 168,161 | 312,299 | 1,993,909 | 2,186,093 | 13,957,363 | 25,920,817 | 181,445,719 |
| -1 | -7 | -13 | -83 | -91 | -581 | -1,079 | -7,553 | -24,023 | -168,161 | -312,299 | -1,993,909 | -2,186,093 | -13,957,363 | -25,920,817 | -181,445,719 |
Here are some more numbers to try:
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