A:
Positive:
1 x 2537055437 x 3624364913 x 1951581129 x 874846791 x 2787973203 x 1249781377 x 6729592639 x 96137
Negative:
-1 x -253705543-7 x -36243649-13 x -19515811-29 x -8748467-91 x -2787973-203 x -1249781-377 x -672959-2639 x -96137
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 253,705,543, 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 | 253,705,543 | |
| -1 | -253,705,543 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 253,705,543.
Example:
1 x 253,705,543 = 253,705,543
and
-1 x -253,705,543 = 253,705,543
Notice both answers equal 253,705,543
With that explanation out of the way, let's continue. Next, we take the number 253,705,543 and divide it by 2:
253,705,543 ÷ 2 = 126,852,771.5
If the quotient is a whole number, then 2 and 126,852,771.5 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 | 253,705,543 | |
| -1 | -253,705,543 |
Now, we try dividing 253,705,543 by 3:
253,705,543 ÷ 3 = 84,568,514.3333
If the quotient is a whole number, then 3 and 84,568,514.3333 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 | 253,705,543 | |
| -1 | -253,705,543 |
Let's try dividing by 4:
253,705,543 ÷ 4 = 63,426,385.75
If the quotient is a whole number, then 4 and 63,426,385.75 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 | 253,705,543 | |
| -1 | 253,705,543 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 29 | 91 | 203 | 377 | 2,639 | 96,137 | 672,959 | 1,249,781 | 2,787,973 | 8,748,467 | 19,515,811 | 36,243,649 | 253,705,543 |
| -1 | -7 | -13 | -29 | -91 | -203 | -377 | -2,639 | -96,137 | -672,959 | -1,249,781 | -2,787,973 | -8,748,467 | -19,515,811 | -36,243,649 | -253,705,543 |
Here are some more numbers to try:
Try the factor calculator