A:
Positive:
1 x 631290855 x 1262581729 x 2176865145 x 435373163 x 387295815 x 774592671 x 236354727 x 13355
Negative:
-1 x -63129085-5 x -12625817-29 x -2176865-145 x -435373-163 x -387295-815 x -77459-2671 x -23635-4727 x -13355
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 63,129,085, 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 | 63,129,085 | |
| -1 | -63,129,085 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 63,129,085.
Example:
1 x 63,129,085 = 63,129,085
and
-1 x -63,129,085 = 63,129,085
Notice both answers equal 63,129,085
With that explanation out of the way, let's continue. Next, we take the number 63,129,085 and divide it by 2:
63,129,085 ÷ 2 = 31,564,542.5
If the quotient is a whole number, then 2 and 31,564,542.5 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 | 63,129,085 | |
| -1 | -63,129,085 |
Now, we try dividing 63,129,085 by 3:
63,129,085 ÷ 3 = 21,043,028.3333
If the quotient is a whole number, then 3 and 21,043,028.3333 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 | 63,129,085 | |
| -1 | -63,129,085 |
Let's try dividing by 4:
63,129,085 ÷ 4 = 15,782,271.25
If the quotient is a whole number, then 4 and 15,782,271.25 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 | 63,129,085 | |
| -1 | 63,129,085 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 163 | 815 | 2,671 | 4,727 | 13,355 | 23,635 | 77,459 | 387,295 | 435,373 | 2,176,865 | 12,625,817 | 63,129,085 |
| -1 | -5 | -29 | -145 | -163 | -815 | -2,671 | -4,727 | -13,355 | -23,635 | -77,459 | -387,295 | -435,373 | -2,176,865 | -12,625,817 | -63,129,085 |
Here are some more numbers to try:
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