A:
Positive:
1 x 3865772313 x 297367119 x 203461753 x 729391247 x 156509689 x 561071007 x 383892953 x 13091
Negative:
-1 x -38657723-13 x -2973671-19 x -2034617-53 x -729391-247 x -156509-689 x -56107-1007 x -38389-2953 x -13091
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 38,657,723, 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 | 38,657,723 | |
| -1 | -38,657,723 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,657,723.
Example:
1 x 38,657,723 = 38,657,723
and
-1 x -38,657,723 = 38,657,723
Notice both answers equal 38,657,723
With that explanation out of the way, let's continue. Next, we take the number 38,657,723 and divide it by 2:
38,657,723 ÷ 2 = 19,328,861.5
If the quotient is a whole number, then 2 and 19,328,861.5 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 | 38,657,723 | |
| -1 | -38,657,723 |
Now, we try dividing 38,657,723 by 3:
38,657,723 ÷ 3 = 12,885,907.6667
If the quotient is a whole number, then 3 and 12,885,907.6667 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 | 38,657,723 | |
| -1 | -38,657,723 |
Let's try dividing by 4:
38,657,723 ÷ 4 = 9,664,430.75
If the quotient is a whole number, then 4 and 9,664,430.75 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 | 38,657,723 | |
| -1 | 38,657,723 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 53 | 247 | 689 | 1,007 | 2,953 | 13,091 | 38,389 | 56,107 | 156,509 | 729,391 | 2,034,617 | 2,973,671 | 38,657,723 |
| -1 | -13 | -19 | -53 | -247 | -689 | -1,007 | -2,953 | -13,091 | -38,389 | -56,107 | -156,509 | -729,391 | -2,034,617 | -2,973,671 | -38,657,723 |
Here are some more numbers to try:
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