A:
Positive:
1 x 1554243555 x 3108487153 x 2932535101 x 1538855265 x 586507505 x 3077715353 x 290355807 x 26765
Negative:
-1 x -155424355-5 x -31084871-53 x -2932535-101 x -1538855-265 x -586507-505 x -307771-5353 x -29035-5807 x -26765
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 155,424,355, 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 | 155,424,355 | |
| -1 | -155,424,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,424,355.
Example:
1 x 155,424,355 = 155,424,355
and
-1 x -155,424,355 = 155,424,355
Notice both answers equal 155,424,355
With that explanation out of the way, let's continue. Next, we take the number 155,424,355 and divide it by 2:
155,424,355 ÷ 2 = 77,712,177.5
If the quotient is a whole number, then 2 and 77,712,177.5 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 | 155,424,355 | |
| -1 | -155,424,355 |
Now, we try dividing 155,424,355 by 3:
155,424,355 ÷ 3 = 51,808,118.3333
If the quotient is a whole number, then 3 and 51,808,118.3333 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 | 155,424,355 | |
| -1 | -155,424,355 |
Let's try dividing by 4:
155,424,355 ÷ 4 = 38,856,088.75
If the quotient is a whole number, then 4 and 38,856,088.75 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 | 155,424,355 | |
| -1 | 155,424,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 101 | 265 | 505 | 5,353 | 5,807 | 26,765 | 29,035 | 307,771 | 586,507 | 1,538,855 | 2,932,535 | 31,084,871 | 155,424,355 |
| -1 | -5 | -53 | -101 | -265 | -505 | -5,353 | -5,807 | -26,765 | -29,035 | -307,771 | -586,507 | -1,538,855 | -2,932,535 | -31,084,871 | -155,424,355 |
Here are some more numbers to try:
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