A:
Positive:
1 x 15540300113 x 1195407717 x 9141353103 x 1508767221 x 7031811339 x 1160591751 x 887516827 x 22763
Negative:
-1 x -155403001-13 x -11954077-17 x -9141353-103 x -1508767-221 x -703181-1339 x -116059-1751 x -88751-6827 x -22763
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 155,403,001, 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 | 155,403,001 | |
| -1 | -155,403,001 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,403,001.
Example:
1 x 155,403,001 = 155,403,001
and
-1 x -155,403,001 = 155,403,001
Notice both answers equal 155,403,001
With that explanation out of the way, let's continue. Next, we take the number 155,403,001 and divide it by 2:
155,403,001 ÷ 2 = 77,701,500.5
If the quotient is a whole number, then 2 and 77,701,500.5 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 | 155,403,001 | |
| -1 | -155,403,001 |
Now, we try dividing 155,403,001 by 3:
155,403,001 ÷ 3 = 51,801,000.3333
If the quotient is a whole number, then 3 and 51,801,000.3333 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 | 155,403,001 | |
| -1 | -155,403,001 |
Let's try dividing by 4:
155,403,001 ÷ 4 = 38,850,750.25
If the quotient is a whole number, then 4 and 38,850,750.25 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 | 155,403,001 | |
| -1 | 155,403,001 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 103 | 221 | 1,339 | 1,751 | 6,827 | 22,763 | 88,751 | 116,059 | 703,181 | 1,508,767 | 9,141,353 | 11,954,077 | 155,403,001 |
| -1 | -13 | -17 | -103 | -221 | -1,339 | -1,751 | -6,827 | -22,763 | -88,751 | -116,059 | -703,181 | -1,508,767 | -9,141,353 | -11,954,077 | -155,403,001 |
Here are some more numbers to try:
Try the factor calculator