A:
Positive:
1 x 1512023177 x 2160033129 x 521387367 x 2256751203 x 744839469 x 3223931943 x 7781911117 x 13601
Negative:
-1 x -151202317-7 x -21600331-29 x -5213873-67 x -2256751-203 x -744839-469 x -322393-1943 x -77819-11117 x -13601
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 151,202,317, 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 | 151,202,317 | |
| -1 | -151,202,317 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 151,202,317.
Example:
1 x 151,202,317 = 151,202,317
and
-1 x -151,202,317 = 151,202,317
Notice both answers equal 151,202,317
With that explanation out of the way, let's continue. Next, we take the number 151,202,317 and divide it by 2:
151,202,317 ÷ 2 = 75,601,158.5
If the quotient is a whole number, then 2 and 75,601,158.5 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 | 151,202,317 | |
| -1 | -151,202,317 |
Now, we try dividing 151,202,317 by 3:
151,202,317 ÷ 3 = 50,400,772.3333
If the quotient is a whole number, then 3 and 50,400,772.3333 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 | 151,202,317 | |
| -1 | -151,202,317 |
Let's try dividing by 4:
151,202,317 ÷ 4 = 37,800,579.25
If the quotient is a whole number, then 4 and 37,800,579.25 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 | 151,202,317 | |
| -1 | 151,202,317 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 67 | 203 | 469 | 1,943 | 11,117 | 13,601 | 77,819 | 322,393 | 744,839 | 2,256,751 | 5,213,873 | 21,600,331 | 151,202,317 |
| -1 | -7 | -29 | -67 | -203 | -469 | -1,943 | -11,117 | -13,601 | -77,819 | -322,393 | -744,839 | -2,256,751 | -5,213,873 | -21,600,331 | -151,202,317 |
Here are some more numbers to try:
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