A:
Positive:
1 x 638143855 x 1276287753 x 1204045257 x 248305265 x 240809937 x 681051285 x 496614685 x 13621
Negative:
-1 x -63814385-5 x -12762877-53 x -1204045-257 x -248305-265 x -240809-937 x -68105-1285 x -49661-4685 x -13621
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 63,814,385, 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 | 63,814,385 | |
| -1 | -63,814,385 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 63,814,385.
Example:
1 x 63,814,385 = 63,814,385
and
-1 x -63,814,385 = 63,814,385
Notice both answers equal 63,814,385
With that explanation out of the way, let's continue. Next, we take the number 63,814,385 and divide it by 2:
63,814,385 ÷ 2 = 31,907,192.5
If the quotient is a whole number, then 2 and 31,907,192.5 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 | 63,814,385 | |
| -1 | -63,814,385 |
Now, we try dividing 63,814,385 by 3:
63,814,385 ÷ 3 = 21,271,461.6667
If the quotient is a whole number, then 3 and 21,271,461.6667 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 | 63,814,385 | |
| -1 | -63,814,385 |
Let's try dividing by 4:
63,814,385 ÷ 4 = 15,953,596.25
If the quotient is a whole number, then 4 and 15,953,596.25 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 | 63,814,385 | |
| -1 | 63,814,385 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 257 | 265 | 937 | 1,285 | 4,685 | 13,621 | 49,661 | 68,105 | 240,809 | 248,305 | 1,204,045 | 12,762,877 | 63,814,385 |
| -1 | -5 | -53 | -257 | -265 | -937 | -1,285 | -4,685 | -13,621 | -49,661 | -68,105 | -240,809 | -248,305 | -1,204,045 | -12,762,877 | -63,814,385 |
Here are some more numbers to try:
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