A:
Positive:
1 x 25345310319 x 1333963741 x 6181783223 x 1136561779 x 3253571459 x 1737174237 x 598199143 x 27721
Negative:
-1 x -253453103-19 x -13339637-41 x -6181783-223 x -1136561-779 x -325357-1459 x -173717-4237 x -59819-9143 x -27721
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 253,453,103, 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 | 253,453,103 | |
| -1 | -253,453,103 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 253,453,103.
Example:
1 x 253,453,103 = 253,453,103
and
-1 x -253,453,103 = 253,453,103
Notice both answers equal 253,453,103
With that explanation out of the way, let's continue. Next, we take the number 253,453,103 and divide it by 2:
253,453,103 ÷ 2 = 126,726,551.5
If the quotient is a whole number, then 2 and 126,726,551.5 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 | 253,453,103 | |
| -1 | -253,453,103 |
Now, we try dividing 253,453,103 by 3:
253,453,103 ÷ 3 = 84,484,367.6667
If the quotient is a whole number, then 3 and 84,484,367.6667 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 | 253,453,103 | |
| -1 | -253,453,103 |
Let's try dividing by 4:
253,453,103 ÷ 4 = 63,363,275.75
If the quotient is a whole number, then 4 and 63,363,275.75 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 | 253,453,103 | |
| -1 | 253,453,103 |
If you did it right, you will end up with this table:
| 1 | 19 | 41 | 223 | 779 | 1,459 | 4,237 | 9,143 | 27,721 | 59,819 | 173,717 | 325,357 | 1,136,561 | 6,181,783 | 13,339,637 | 253,453,103 |
| -1 | -19 | -41 | -223 | -779 | -1,459 | -4,237 | -9,143 | -27,721 | -59,819 | -173,717 | -325,357 | -1,136,561 | -6,181,783 | -13,339,637 | -253,453,103 |
Here are some more numbers to try:
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