A:
Positive:
1 x 2011255455 x 4022510919 x 1058555595 x 2117111277 x 7260851385 x 1452175263 x 382157643 x 26315
Negative:
-1 x -201125545-5 x -40225109-19 x -10585555-95 x -2117111-277 x -726085-1385 x -145217-5263 x -38215-7643 x -26315
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 201,125,545, 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 | 201,125,545 | |
| -1 | -201,125,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,125,545.
Example:
1 x 201,125,545 = 201,125,545
and
-1 x -201,125,545 = 201,125,545
Notice both answers equal 201,125,545
With that explanation out of the way, let's continue. Next, we take the number 201,125,545 and divide it by 2:
201,125,545 ÷ 2 = 100,562,772.5
If the quotient is a whole number, then 2 and 100,562,772.5 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 | 201,125,545 | |
| -1 | -201,125,545 |
Now, we try dividing 201,125,545 by 3:
201,125,545 ÷ 3 = 67,041,848.3333
If the quotient is a whole number, then 3 and 67,041,848.3333 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 | 201,125,545 | |
| -1 | -201,125,545 |
Let's try dividing by 4:
201,125,545 ÷ 4 = 50,281,386.25
If the quotient is a whole number, then 4 and 50,281,386.25 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 | 201,125,545 | |
| -1 | 201,125,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 277 | 1,385 | 5,263 | 7,643 | 26,315 | 38,215 | 145,217 | 726,085 | 2,117,111 | 10,585,555 | 40,225,109 | 201,125,545 |
| -1 | -5 | -19 | -95 | -277 | -1,385 | -5,263 | -7,643 | -26,315 | -38,215 | -145,217 | -726,085 | -2,117,111 | -10,585,555 | -40,225,109 | -201,125,545 |
Here are some more numbers to try:
Try the factor calculator