A:
Positive:
1 x 1005534555 x 2011069153 x 1897235265 x 379447613 x 164035619 x 1624453065 x 328073095 x 32489
Negative:
-1 x -100553455-5 x -20110691-53 x -1897235-265 x -379447-613 x -164035-619 x -162445-3065 x -32807-3095 x -32489
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 100,553,455, 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 | 100,553,455 | |
| -1 | -100,553,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 100,553,455.
Example:
1 x 100,553,455 = 100,553,455
and
-1 x -100,553,455 = 100,553,455
Notice both answers equal 100,553,455
With that explanation out of the way, let's continue. Next, we take the number 100,553,455 and divide it by 2:
100,553,455 ÷ 2 = 50,276,727.5
If the quotient is a whole number, then 2 and 50,276,727.5 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 | 100,553,455 | |
| -1 | -100,553,455 |
Now, we try dividing 100,553,455 by 3:
100,553,455 ÷ 3 = 33,517,818.3333
If the quotient is a whole number, then 3 and 33,517,818.3333 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 | 100,553,455 | |
| -1 | -100,553,455 |
Let's try dividing by 4:
100,553,455 ÷ 4 = 25,138,363.75
If the quotient is a whole number, then 4 and 25,138,363.75 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 | 100,553,455 | |
| -1 | 100,553,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 265 | 613 | 619 | 3,065 | 3,095 | 32,489 | 32,807 | 162,445 | 164,035 | 379,447 | 1,897,235 | 20,110,691 | 100,553,455 |
| -1 | -5 | -53 | -265 | -613 | -619 | -3,065 | -3,095 | -32,489 | -32,807 | -162,445 | -164,035 | -379,447 | -1,897,235 | -20,110,691 | -100,553,455 |
Here are some more numbers to try:
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