A:
Positive:
1 x 12566055 x 2513217 x 17951523 x 5463535 x 3590349 x 25645115 x 10927161 x 7805223 x 5635245 x 5129805 x 15611115 x 1127
Negative:
-1 x -1256605-5 x -251321-7 x -179515-23 x -54635-35 x -35903-49 x -25645-115 x -10927-161 x -7805-223 x -5635-245 x -5129-805 x -1561-1115 x -1127
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 1,256,605, 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 | 1,256,605 | |
| -1 | -1,256,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,256,605.
Example:
1 x 1,256,605 = 1,256,605
and
-1 x -1,256,605 = 1,256,605
Notice both answers equal 1,256,605
With that explanation out of the way, let's continue. Next, we take the number 1,256,605 and divide it by 2:
1,256,605 ÷ 2 = 628,302.5
If the quotient is a whole number, then 2 and 628,302.5 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 | 1,256,605 | |
| -1 | -1,256,605 |
Now, we try dividing 1,256,605 by 3:
1,256,605 ÷ 3 = 418,868.3333
If the quotient is a whole number, then 3 and 418,868.3333 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 | 1,256,605 | |
| -1 | -1,256,605 |
Let's try dividing by 4:
1,256,605 ÷ 4 = 314,151.25
If the quotient is a whole number, then 4 and 314,151.25 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 | 1,256,605 | |
| -1 | 1,256,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 49 | 115 | 161 | 223 | 245 | 805 | 1,115 | 1,127 | 1,561 | 5,129 | 5,635 | 7,805 | 10,927 | 25,645 | 35,903 | 54,635 | 179,515 | 251,321 | 1,256,605 |
| -1 | -5 | -7 | -23 | -35 | -49 | -115 | -161 | -223 | -245 | -805 | -1,115 | -1,127 | -1,561 | -5,129 | -5,635 | -7,805 | -10,927 | -25,645 | -35,903 | -54,635 | -179,515 | -251,321 | -1,256,605 |
Here are some more numbers to try:
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