A:
Positive:
1 x 2635616355 x 5271232719 x 1387166595 x 2774333823 x 3202453371 x 781854115 x 6404915637 x 16855
Negative:
-1 x -263561635-5 x -52712327-19 x -13871665-95 x -2774333-823 x -320245-3371 x -78185-4115 x -64049-15637 x -16855
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 263,561,635, 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 | 263,561,635 | |
| -1 | -263,561,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 263,561,635.
Example:
1 x 263,561,635 = 263,561,635
and
-1 x -263,561,635 = 263,561,635
Notice both answers equal 263,561,635
With that explanation out of the way, let's continue. Next, we take the number 263,561,635 and divide it by 2:
263,561,635 ÷ 2 = 131,780,817.5
If the quotient is a whole number, then 2 and 131,780,817.5 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 | 263,561,635 | |
| -1 | -263,561,635 |
Now, we try dividing 263,561,635 by 3:
263,561,635 ÷ 3 = 87,853,878.3333
If the quotient is a whole number, then 3 and 87,853,878.3333 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 | 263,561,635 | |
| -1 | -263,561,635 |
Let's try dividing by 4:
263,561,635 ÷ 4 = 65,890,408.75
If the quotient is a whole number, then 4 and 65,890,408.75 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 | 263,561,635 | |
| -1 | 263,561,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 823 | 3,371 | 4,115 | 15,637 | 16,855 | 64,049 | 78,185 | 320,245 | 2,774,333 | 13,871,665 | 52,712,327 | 263,561,635 |
| -1 | -5 | -19 | -95 | -823 | -3,371 | -4,115 | -15,637 | -16,855 | -64,049 | -78,185 | -320,245 | -2,774,333 | -13,871,665 | -52,712,327 | -263,561,635 |
Here are some more numbers to try:
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