A:
Positive:
1 x 1550632917 x 91213729 x 53470171 x 218399443 x 35003493 x 314531207 x 128472059 x 7531
Negative:
-1 x -15506329-17 x -912137-29 x -534701-71 x -218399-443 x -35003-493 x -31453-1207 x -12847-2059 x -7531
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 15,506,329, 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 | 15,506,329 | |
| -1 | -15,506,329 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,506,329.
Example:
1 x 15,506,329 = 15,506,329
and
-1 x -15,506,329 = 15,506,329
Notice both answers equal 15,506,329
With that explanation out of the way, let's continue. Next, we take the number 15,506,329 and divide it by 2:
15,506,329 ÷ 2 = 7,753,164.5
If the quotient is a whole number, then 2 and 7,753,164.5 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 | 15,506,329 | |
| -1 | -15,506,329 |
Now, we try dividing 15,506,329 by 3:
15,506,329 ÷ 3 = 5,168,776.3333
If the quotient is a whole number, then 3 and 5,168,776.3333 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 | 15,506,329 | |
| -1 | -15,506,329 |
Let's try dividing by 4:
15,506,329 ÷ 4 = 3,876,582.25
If the quotient is a whole number, then 4 and 3,876,582.25 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 | 15,506,329 | |
| -1 | 15,506,329 |
If you did it right, you will end up with this table:
| 1 | 17 | 29 | 71 | 443 | 493 | 1,207 | 2,059 | 7,531 | 12,847 | 31,453 | 35,003 | 218,399 | 534,701 | 912,137 | 15,506,329 |
| -1 | -17 | -29 | -71 | -443 | -493 | -1,207 | -2,059 | -7,531 | -12,847 | -31,453 | -35,003 | -218,399 | -534,701 | -912,137 | -15,506,329 |
Here are some more numbers to try:
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