A:
Positive:
1 x 1407618855 x 2815237711 x 1279653555 x 255930773 x 1928245365 x 385649803 x 1752954015 x 35059
Negative:
-1 x -140761885-5 x -28152377-11 x -12796535-55 x -2559307-73 x -1928245-365 x -385649-803 x -175295-4015 x -35059
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 140,761,885, 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 | 140,761,885 | |
| -1 | -140,761,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,761,885.
Example:
1 x 140,761,885 = 140,761,885
and
-1 x -140,761,885 = 140,761,885
Notice both answers equal 140,761,885
With that explanation out of the way, let's continue. Next, we take the number 140,761,885 and divide it by 2:
140,761,885 ÷ 2 = 70,380,942.5
If the quotient is a whole number, then 2 and 70,380,942.5 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 | 140,761,885 | |
| -1 | -140,761,885 |
Now, we try dividing 140,761,885 by 3:
140,761,885 ÷ 3 = 46,920,628.3333
If the quotient is a whole number, then 3 and 46,920,628.3333 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 | 140,761,885 | |
| -1 | -140,761,885 |
Let's try dividing by 4:
140,761,885 ÷ 4 = 35,190,471.25
If the quotient is a whole number, then 4 and 35,190,471.25 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 | 140,761,885 | |
| -1 | 140,761,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 73 | 365 | 803 | 4,015 | 35,059 | 175,295 | 385,649 | 1,928,245 | 2,559,307 | 12,796,535 | 28,152,377 | 140,761,885 |
| -1 | -5 | -11 | -55 | -73 | -365 | -803 | -4,015 | -35,059 | -175,295 | -385,649 | -1,928,245 | -2,559,307 | -12,796,535 | -28,152,377 | -140,761,885 |
Here are some more numbers to try:
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