A:
Positive:
1 x 900790455 x 180158097 x 1286843535 x 2573687271 x 3323951355 x 664791897 x 474859485 x 9497
Negative:
-1 x -90079045-5 x -18015809-7 x -12868435-35 x -2573687-271 x -332395-1355 x -66479-1897 x -47485-9485 x -9497
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 90,079,045, 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 | 90,079,045 | |
| -1 | -90,079,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 90,079,045.
Example:
1 x 90,079,045 = 90,079,045
and
-1 x -90,079,045 = 90,079,045
Notice both answers equal 90,079,045
With that explanation out of the way, let's continue. Next, we take the number 90,079,045 and divide it by 2:
90,079,045 ÷ 2 = 45,039,522.5
If the quotient is a whole number, then 2 and 45,039,522.5 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 | 90,079,045 | |
| -1 | -90,079,045 |
Now, we try dividing 90,079,045 by 3:
90,079,045 ÷ 3 = 30,026,348.3333
If the quotient is a whole number, then 3 and 30,026,348.3333 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 | 90,079,045 | |
| -1 | -90,079,045 |
Let's try dividing by 4:
90,079,045 ÷ 4 = 22,519,761.25
If the quotient is a whole number, then 4 and 22,519,761.25 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 | 90,079,045 | |
| -1 | 90,079,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 271 | 1,355 | 1,897 | 9,485 | 9,497 | 47,485 | 66,479 | 332,395 | 2,573,687 | 12,868,435 | 18,015,809 | 90,079,045 |
| -1 | -5 | -7 | -35 | -271 | -1,355 | -1,897 | -9,485 | -9,497 | -47,485 | -66,479 | -332,395 | -2,573,687 | -12,868,435 | -18,015,809 | -90,079,045 |
Here are some more numbers to try:
Try the factor calculator