A:
Positive:
1 x 101385555 x 20277117 x 144836535 x 28967337 x 274015185 x 54803259 x 391451295 x 7829
Negative:
-1 x -10138555-5 x -2027711-7 x -1448365-35 x -289673-37 x -274015-185 x -54803-259 x -39145-1295 x -7829
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 10,138,555, 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 | 10,138,555 | |
| -1 | -10,138,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,138,555.
Example:
1 x 10,138,555 = 10,138,555
and
-1 x -10,138,555 = 10,138,555
Notice both answers equal 10,138,555
With that explanation out of the way, let's continue. Next, we take the number 10,138,555 and divide it by 2:
10,138,555 ÷ 2 = 5,069,277.5
If the quotient is a whole number, then 2 and 5,069,277.5 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 | 10,138,555 | |
| -1 | -10,138,555 |
Now, we try dividing 10,138,555 by 3:
10,138,555 ÷ 3 = 3,379,518.3333
If the quotient is a whole number, then 3 and 3,379,518.3333 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 | 10,138,555 | |
| -1 | -10,138,555 |
Let's try dividing by 4:
10,138,555 ÷ 4 = 2,534,638.75
If the quotient is a whole number, then 4 and 2,534,638.75 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 | 10,138,555 | |
| -1 | 10,138,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 37 | 185 | 259 | 1,295 | 7,829 | 39,145 | 54,803 | 274,015 | 289,673 | 1,448,365 | 2,027,711 | 10,138,555 |
| -1 | -5 | -7 | -35 | -37 | -185 | -259 | -1,295 | -7,829 | -39,145 | -54,803 | -274,015 | -289,673 | -1,448,365 | -2,027,711 | -10,138,555 |
Here are some more numbers to try:
Try the factor calculator