A:
Positive:
1 x 4273855311 x 388532313 x 328758131 x 1378663143 x 298871311 x 137423341 x 125333403 x 106051961 x 444733421 x 124934043 x 105714433 x 9641
Negative:
-1 x -42738553-11 x -3885323-13 x -3287581-31 x -1378663-143 x -298871-311 x -137423-341 x -125333-403 x -106051-961 x -44473-3421 x -12493-4043 x -10571-4433 x -9641
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 42,738,553, 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 | 42,738,553 | |
| -1 | -42,738,553 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,738,553.
Example:
1 x 42,738,553 = 42,738,553
and
-1 x -42,738,553 = 42,738,553
Notice both answers equal 42,738,553
With that explanation out of the way, let's continue. Next, we take the number 42,738,553 and divide it by 2:
42,738,553 ÷ 2 = 21,369,276.5
If the quotient is a whole number, then 2 and 21,369,276.5 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 | 42,738,553 | |
| -1 | -42,738,553 |
Now, we try dividing 42,738,553 by 3:
42,738,553 ÷ 3 = 14,246,184.3333
If the quotient is a whole number, then 3 and 14,246,184.3333 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 | 42,738,553 | |
| -1 | -42,738,553 |
Let's try dividing by 4:
42,738,553 ÷ 4 = 10,684,638.25
If the quotient is a whole number, then 4 and 10,684,638.25 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 | 42,738,553 | |
| -1 | 42,738,553 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 31 | 143 | 311 | 341 | 403 | 961 | 3,421 | 4,043 | 4,433 | 9,641 | 10,571 | 12,493 | 44,473 | 106,051 | 125,333 | 137,423 | 298,871 | 1,378,663 | 3,287,581 | 3,885,323 | 42,738,553 |
| -1 | -11 | -13 | -31 | -143 | -311 | -341 | -403 | -961 | -3,421 | -4,043 | -4,433 | -9,641 | -10,571 | -12,493 | -44,473 | -106,051 | -125,333 | -137,423 | -298,871 | -1,378,663 | -3,287,581 | -3,885,323 | -42,738,553 |
Here are some more numbers to try:
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