A:
Positive:
1 x 1535645455 x 3071290931 x 495369579 x 1943855155 x 990739395 x 3887712449 x 6270512245 x 12541
Negative:
-1 x -153564545-5 x -30712909-31 x -4953695-79 x -1943855-155 x -990739-395 x -388771-2449 x -62705-12245 x -12541
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 153,564,545, 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 | 153,564,545 | |
| -1 | -153,564,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 153,564,545.
Example:
1 x 153,564,545 = 153,564,545
and
-1 x -153,564,545 = 153,564,545
Notice both answers equal 153,564,545
With that explanation out of the way, let's continue. Next, we take the number 153,564,545 and divide it by 2:
153,564,545 ÷ 2 = 76,782,272.5
If the quotient is a whole number, then 2 and 76,782,272.5 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 | 153,564,545 | |
| -1 | -153,564,545 |
Now, we try dividing 153,564,545 by 3:
153,564,545 ÷ 3 = 51,188,181.6667
If the quotient is a whole number, then 3 and 51,188,181.6667 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 | 153,564,545 | |
| -1 | -153,564,545 |
Let's try dividing by 4:
153,564,545 ÷ 4 = 38,391,136.25
If the quotient is a whole number, then 4 and 38,391,136.25 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 | 153,564,545 | |
| -1 | 153,564,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 79 | 155 | 395 | 2,449 | 12,245 | 12,541 | 62,705 | 388,771 | 990,739 | 1,943,855 | 4,953,695 | 30,712,909 | 153,564,545 |
| -1 | -5 | -31 | -79 | -155 | -395 | -2,449 | -12,245 | -12,541 | -62,705 | -388,771 | -990,739 | -1,943,855 | -4,953,695 | -30,712,909 | -153,564,545 |
Here are some more numbers to try:
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