A:
Positive:
1 x 1663522155 x 3327044323 x 7232705115 x 1446541293 x 5677551465 x 1135514937 x 336956739 x 24685
Negative:
-1 x -166352215-5 x -33270443-23 x -7232705-115 x -1446541-293 x -567755-1465 x -113551-4937 x -33695-6739 x -24685
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 166,352,215, 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 | 166,352,215 | |
| -1 | -166,352,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,352,215.
Example:
1 x 166,352,215 = 166,352,215
and
-1 x -166,352,215 = 166,352,215
Notice both answers equal 166,352,215
With that explanation out of the way, let's continue. Next, we take the number 166,352,215 and divide it by 2:
166,352,215 ÷ 2 = 83,176,107.5
If the quotient is a whole number, then 2 and 83,176,107.5 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 | 166,352,215 | |
| -1 | -166,352,215 |
Now, we try dividing 166,352,215 by 3:
166,352,215 ÷ 3 = 55,450,738.3333
If the quotient is a whole number, then 3 and 55,450,738.3333 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 | 166,352,215 | |
| -1 | -166,352,215 |
Let's try dividing by 4:
166,352,215 ÷ 4 = 41,588,053.75
If the quotient is a whole number, then 4 and 41,588,053.75 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 | 166,352,215 | |
| -1 | 166,352,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 293 | 1,465 | 4,937 | 6,739 | 24,685 | 33,695 | 113,551 | 567,755 | 1,446,541 | 7,232,705 | 33,270,443 | 166,352,215 |
| -1 | -5 | -23 | -115 | -293 | -1,465 | -4,937 | -6,739 | -24,685 | -33,695 | -113,551 | -567,755 | -1,446,541 | -7,232,705 | -33,270,443 | -166,352,215 |
Here are some more numbers to try:
Try the factor calculator