A:
Positive:
1 x 125534455 x 251068973 x 171965163 x 77015211 x 59495365 x 34393815 x 154031055 x 11899
Negative:
-1 x -12553445-5 x -2510689-73 x -171965-163 x -77015-211 x -59495-365 x -34393-815 x -15403-1055 x -11899
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 12,553,445, 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 | 12,553,445 | |
| -1 | -12,553,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,553,445.
Example:
1 x 12,553,445 = 12,553,445
and
-1 x -12,553,445 = 12,553,445
Notice both answers equal 12,553,445
With that explanation out of the way, let's continue. Next, we take the number 12,553,445 and divide it by 2:
12,553,445 ÷ 2 = 6,276,722.5
If the quotient is a whole number, then 2 and 6,276,722.5 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 | 12,553,445 | |
| -1 | -12,553,445 |
Now, we try dividing 12,553,445 by 3:
12,553,445 ÷ 3 = 4,184,481.6667
If the quotient is a whole number, then 3 and 4,184,481.6667 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 | 12,553,445 | |
| -1 | -12,553,445 |
Let's try dividing by 4:
12,553,445 ÷ 4 = 3,138,361.25
If the quotient is a whole number, then 4 and 3,138,361.25 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 | 12,553,445 | |
| -1 | 12,553,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 73 | 163 | 211 | 365 | 815 | 1,055 | 11,899 | 15,403 | 34,393 | 59,495 | 77,015 | 171,965 | 2,510,689 | 12,553,445 |
| -1 | -5 | -73 | -163 | -211 | -365 | -815 | -1,055 | -11,899 | -15,403 | -34,393 | -59,495 | -77,015 | -171,965 | -2,510,689 | -12,553,445 |
Here are some more numbers to try:
Try the factor calculator