A:
Positive:
1 x 2452634155 x 49052683139 x 1764485359 x 683185695 x 352897983 x 2495051795 x 1366374915 x 49901
Negative:
-1 x -245263415-5 x -49052683-139 x -1764485-359 x -683185-695 x -352897-983 x -249505-1795 x -136637-4915 x -49901
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 245,263,415, 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 | 245,263,415 | |
| -1 | -245,263,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 245,263,415.
Example:
1 x 245,263,415 = 245,263,415
and
-1 x -245,263,415 = 245,263,415
Notice both answers equal 245,263,415
With that explanation out of the way, let's continue. Next, we take the number 245,263,415 and divide it by 2:
245,263,415 ÷ 2 = 122,631,707.5
If the quotient is a whole number, then 2 and 122,631,707.5 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 | 245,263,415 | |
| -1 | -245,263,415 |
Now, we try dividing 245,263,415 by 3:
245,263,415 ÷ 3 = 81,754,471.6667
If the quotient is a whole number, then 3 and 81,754,471.6667 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 | 245,263,415 | |
| -1 | -245,263,415 |
Let's try dividing by 4:
245,263,415 ÷ 4 = 61,315,853.75
If the quotient is a whole number, then 4 and 61,315,853.75 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 | 245,263,415 | |
| -1 | 245,263,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 139 | 359 | 695 | 983 | 1,795 | 4,915 | 49,901 | 136,637 | 249,505 | 352,897 | 683,185 | 1,764,485 | 49,052,683 | 245,263,415 |
| -1 | -5 | -139 | -359 | -695 | -983 | -1,795 | -4,915 | -49,901 | -136,637 | -249,505 | -352,897 | -683,185 | -1,764,485 | -49,052,683 | -245,263,415 |
Here are some more numbers to try:
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