A:
Positive:
1 x 1405005555 x 2810011113 x 1080773565 x 2161547191 x 735605955 x 1471212483 x 5658511317 x 12415
Negative:
-1 x -140500555-5 x -28100111-13 x -10807735-65 x -2161547-191 x -735605-955 x -147121-2483 x -56585-11317 x -12415
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 140,500,555, 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 | 140,500,555 | |
| -1 | -140,500,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,500,555.
Example:
1 x 140,500,555 = 140,500,555
and
-1 x -140,500,555 = 140,500,555
Notice both answers equal 140,500,555
With that explanation out of the way, let's continue. Next, we take the number 140,500,555 and divide it by 2:
140,500,555 ÷ 2 = 70,250,277.5
If the quotient is a whole number, then 2 and 70,250,277.5 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 | 140,500,555 | |
| -1 | -140,500,555 |
Now, we try dividing 140,500,555 by 3:
140,500,555 ÷ 3 = 46,833,518.3333
If the quotient is a whole number, then 3 and 46,833,518.3333 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 | 140,500,555 | |
| -1 | -140,500,555 |
Let's try dividing by 4:
140,500,555 ÷ 4 = 35,125,138.75
If the quotient is a whole number, then 4 and 35,125,138.75 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 | 140,500,555 | |
| -1 | 140,500,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 191 | 955 | 2,483 | 11,317 | 12,415 | 56,585 | 147,121 | 735,605 | 2,161,547 | 10,807,735 | 28,100,111 | 140,500,555 |
| -1 | -5 | -13 | -65 | -191 | -955 | -2,483 | -11,317 | -12,415 | -56,585 | -147,121 | -735,605 | -2,161,547 | -10,807,735 | -28,100,111 | -140,500,555 |
Here are some more numbers to try:
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