A:
Positive:
1 x 72587355 x 145174711 x 65988555 x 131977271 x 26785487 x 149051355 x 53572435 x 2981
Negative:
-1 x -7258735-5 x -1451747-11 x -659885-55 x -131977-271 x -26785-487 x -14905-1355 x -5357-2435 x -2981
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 7,258,735, 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 | 7,258,735 | |
| -1 | -7,258,735 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,258,735.
Example:
1 x 7,258,735 = 7,258,735
and
-1 x -7,258,735 = 7,258,735
Notice both answers equal 7,258,735
With that explanation out of the way, let's continue. Next, we take the number 7,258,735 and divide it by 2:
7,258,735 ÷ 2 = 3,629,367.5
If the quotient is a whole number, then 2 and 3,629,367.5 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 | 7,258,735 | |
| -1 | -7,258,735 |
Now, we try dividing 7,258,735 by 3:
7,258,735 ÷ 3 = 2,419,578.3333
If the quotient is a whole number, then 3 and 2,419,578.3333 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 | 7,258,735 | |
| -1 | -7,258,735 |
Let's try dividing by 4:
7,258,735 ÷ 4 = 1,814,683.75
If the quotient is a whole number, then 4 and 1,814,683.75 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 | 7,258,735 | |
| -1 | 7,258,735 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 271 | 487 | 1,355 | 2,435 | 2,981 | 5,357 | 14,905 | 26,785 | 131,977 | 659,885 | 1,451,747 | 7,258,735 |
| -1 | -5 | -11 | -55 | -271 | -487 | -1,355 | -2,435 | -2,981 | -5,357 | -14,905 | -26,785 | -131,977 | -659,885 | -1,451,747 | -7,258,735 |
Here are some more numbers to try:
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