A:
Positive:
1 x 151403355 x 30280677 x 216290535 x 432581229 x 661151145 x 132231603 x 94451889 x 8015
Negative:
-1 x -15140335-5 x -3028067-7 x -2162905-35 x -432581-229 x -66115-1145 x -13223-1603 x -9445-1889 x -8015
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 15,140,335, 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 | 15,140,335 | |
| -1 | -15,140,335 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,140,335.
Example:
1 x 15,140,335 = 15,140,335
and
-1 x -15,140,335 = 15,140,335
Notice both answers equal 15,140,335
With that explanation out of the way, let's continue. Next, we take the number 15,140,335 and divide it by 2:
15,140,335 ÷ 2 = 7,570,167.5
If the quotient is a whole number, then 2 and 7,570,167.5 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 | 15,140,335 | |
| -1 | -15,140,335 |
Now, we try dividing 15,140,335 by 3:
15,140,335 ÷ 3 = 5,046,778.3333
If the quotient is a whole number, then 3 and 5,046,778.3333 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 | 15,140,335 | |
| -1 | -15,140,335 |
Let's try dividing by 4:
15,140,335 ÷ 4 = 3,785,083.75
If the quotient is a whole number, then 4 and 3,785,083.75 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 | 15,140,335 | |
| -1 | 15,140,335 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 229 | 1,145 | 1,603 | 1,889 | 8,015 | 9,445 | 13,223 | 66,115 | 432,581 | 2,162,905 | 3,028,067 | 15,140,335 |
| -1 | -5 | -7 | -35 | -229 | -1,145 | -1,603 | -1,889 | -8,015 | -9,445 | -13,223 | -66,115 | -432,581 | -2,162,905 | -3,028,067 | -15,140,335 |
Here are some more numbers to try:
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