A:
Positive:
1 x 1704704155 x 3409408341 x 4157815205 x 831563251 x 6791651255 x 1358333313 x 5145510291 x 16565
Negative:
-1 x -170470415-5 x -34094083-41 x -4157815-205 x -831563-251 x -679165-1255 x -135833-3313 x -51455-10291 x -16565
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 170,470,415, 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 | 170,470,415 | |
| -1 | -170,470,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 170,470,415.
Example:
1 x 170,470,415 = 170,470,415
and
-1 x -170,470,415 = 170,470,415
Notice both answers equal 170,470,415
With that explanation out of the way, let's continue. Next, we take the number 170,470,415 and divide it by 2:
170,470,415 ÷ 2 = 85,235,207.5
If the quotient is a whole number, then 2 and 85,235,207.5 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 | 170,470,415 | |
| -1 | -170,470,415 |
Now, we try dividing 170,470,415 by 3:
170,470,415 ÷ 3 = 56,823,471.6667
If the quotient is a whole number, then 3 and 56,823,471.6667 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 | 170,470,415 | |
| -1 | -170,470,415 |
Let's try dividing by 4:
170,470,415 ÷ 4 = 42,617,603.75
If the quotient is a whole number, then 4 and 42,617,603.75 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 | 170,470,415 | |
| -1 | 170,470,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 205 | 251 | 1,255 | 3,313 | 10,291 | 16,565 | 51,455 | 135,833 | 679,165 | 831,563 | 4,157,815 | 34,094,083 | 170,470,415 |
| -1 | -5 | -41 | -205 | -251 | -1,255 | -3,313 | -10,291 | -16,565 | -51,455 | -135,833 | -679,165 | -831,563 | -4,157,815 | -34,094,083 | -170,470,415 |
Here are some more numbers to try:
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