A:
Positive:
1 x 15162077 x 21660111 x 13783729 x 5228349 x 3094377 x 1969197 x 15631203 x 7469319 x 4753539 x 2813679 x 22331067 x 1421
Negative:
-1 x -1516207-7 x -216601-11 x -137837-29 x -52283-49 x -30943-77 x -19691-97 x -15631-203 x -7469-319 x -4753-539 x -2813-679 x -2233-1067 x -1421
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 1,516,207, 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 | 1,516,207 | |
| -1 | -1,516,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,516,207.
Example:
1 x 1,516,207 = 1,516,207
and
-1 x -1,516,207 = 1,516,207
Notice both answers equal 1,516,207
With that explanation out of the way, let's continue. Next, we take the number 1,516,207 and divide it by 2:
1,516,207 ÷ 2 = 758,103.5
If the quotient is a whole number, then 2 and 758,103.5 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 | 1,516,207 | |
| -1 | -1,516,207 |
Now, we try dividing 1,516,207 by 3:
1,516,207 ÷ 3 = 505,402.3333
If the quotient is a whole number, then 3 and 505,402.3333 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 | 1,516,207 | |
| -1 | -1,516,207 |
Let's try dividing by 4:
1,516,207 ÷ 4 = 379,051.75
If the quotient is a whole number, then 4 and 379,051.75 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 | 1,516,207 | |
| -1 | 1,516,207 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 29 | 49 | 77 | 97 | 203 | 319 | 539 | 679 | 1,067 | 1,421 | 2,233 | 2,813 | 4,753 | 7,469 | 15,631 | 19,691 | 30,943 | 52,283 | 137,837 | 216,601 | 1,516,207 |
| -1 | -7 | -11 | -29 | -49 | -77 | -97 | -203 | -319 | -539 | -679 | -1,067 | -1,421 | -2,233 | -2,813 | -4,753 | -7,469 | -15,631 | -19,691 | -30,943 | -52,283 | -137,837 | -216,601 | -1,516,207 |
Here are some more numbers to try:
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