A:
Positive:
1 x 2575148037 x 3678782913 x 1980883191 x 2829833313 x 8227312191 x 1175334069 x 632879041 x 28483
Negative:
-1 x -257514803-7 x -36787829-13 x -19808831-91 x -2829833-313 x -822731-2191 x -117533-4069 x -63287-9041 x -28483
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 257,514,803, 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 | 257,514,803 | |
| -1 | -257,514,803 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 257,514,803.
Example:
1 x 257,514,803 = 257,514,803
and
-1 x -257,514,803 = 257,514,803
Notice both answers equal 257,514,803
With that explanation out of the way, let's continue. Next, we take the number 257,514,803 and divide it by 2:
257,514,803 ÷ 2 = 128,757,401.5
If the quotient is a whole number, then 2 and 128,757,401.5 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 | 257,514,803 | |
| -1 | -257,514,803 |
Now, we try dividing 257,514,803 by 3:
257,514,803 ÷ 3 = 85,838,267.6667
If the quotient is a whole number, then 3 and 85,838,267.6667 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 | 257,514,803 | |
| -1 | -257,514,803 |
Let's try dividing by 4:
257,514,803 ÷ 4 = 64,378,700.75
If the quotient is a whole number, then 4 and 64,378,700.75 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 | 257,514,803 | |
| -1 | 257,514,803 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 313 | 2,191 | 4,069 | 9,041 | 28,483 | 63,287 | 117,533 | 822,731 | 2,829,833 | 19,808,831 | 36,787,829 | 257,514,803 |
| -1 | -7 | -13 | -91 | -313 | -2,191 | -4,069 | -9,041 | -28,483 | -63,287 | -117,533 | -822,731 | -2,829,833 | -19,808,831 | -36,787,829 | -257,514,803 |
Here are some more numbers to try:
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