A:
Positive:
1 x 631404055 x 1262808123 x 2745235115 x 549047677 x 93265811 x 778553385 x 186534055 x 15571
Negative:
-1 x -63140405-5 x -12628081-23 x -2745235-115 x -549047-677 x -93265-811 x -77855-3385 x -18653-4055 x -15571
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 63,140,405, 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 | 63,140,405 | |
| -1 | -63,140,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 63,140,405.
Example:
1 x 63,140,405 = 63,140,405
and
-1 x -63,140,405 = 63,140,405
Notice both answers equal 63,140,405
With that explanation out of the way, let's continue. Next, we take the number 63,140,405 and divide it by 2:
63,140,405 ÷ 2 = 31,570,202.5
If the quotient is a whole number, then 2 and 31,570,202.5 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 | 63,140,405 | |
| -1 | -63,140,405 |
Now, we try dividing 63,140,405 by 3:
63,140,405 ÷ 3 = 21,046,801.6667
If the quotient is a whole number, then 3 and 21,046,801.6667 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 | 63,140,405 | |
| -1 | -63,140,405 |
Let's try dividing by 4:
63,140,405 ÷ 4 = 15,785,101.25
If the quotient is a whole number, then 4 and 15,785,101.25 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 | 63,140,405 | |
| -1 | 63,140,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 677 | 811 | 3,385 | 4,055 | 15,571 | 18,653 | 77,855 | 93,265 | 549,047 | 2,745,235 | 12,628,081 | 63,140,405 |
| -1 | -5 | -23 | -115 | -677 | -811 | -3,385 | -4,055 | -15,571 | -18,653 | -77,855 | -93,265 | -549,047 | -2,745,235 | -12,628,081 | -63,140,405 |
Here are some more numbers to try:
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