A:
Positive:
1 x 645460137 x 922085941 x 1574293239 x 270067287 x 224899941 x 685931673 x 385816587 x 9799
Negative:
-1 x -64546013-7 x -9220859-41 x -1574293-239 x -270067-287 x -224899-941 x -68593-1673 x -38581-6587 x -9799
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 64,546,013, 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 | 64,546,013 | |
| -1 | -64,546,013 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,546,013.
Example:
1 x 64,546,013 = 64,546,013
and
-1 x -64,546,013 = 64,546,013
Notice both answers equal 64,546,013
With that explanation out of the way, let's continue. Next, we take the number 64,546,013 and divide it by 2:
64,546,013 ÷ 2 = 32,273,006.5
If the quotient is a whole number, then 2 and 32,273,006.5 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 | 64,546,013 | |
| -1 | -64,546,013 |
Now, we try dividing 64,546,013 by 3:
64,546,013 ÷ 3 = 21,515,337.6667
If the quotient is a whole number, then 3 and 21,515,337.6667 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 | 64,546,013 | |
| -1 | -64,546,013 |
Let's try dividing by 4:
64,546,013 ÷ 4 = 16,136,503.25
If the quotient is a whole number, then 4 and 16,136,503.25 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 | 64,546,013 | |
| -1 | 64,546,013 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 239 | 287 | 941 | 1,673 | 6,587 | 9,799 | 38,581 | 68,593 | 224,899 | 270,067 | 1,574,293 | 9,220,859 | 64,546,013 |
| -1 | -7 | -41 | -239 | -287 | -941 | -1,673 | -6,587 | -9,799 | -38,581 | -68,593 | -224,899 | -270,067 | -1,574,293 | -9,220,859 | -64,546,013 |
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