A:
Positive:
1 x 12283155 x 24566311 x 11166523 x 5340555 x 22333115 x 10681253 x 4855971 x 1265
Negative:
-1 x -1228315-5 x -245663-11 x -111665-23 x -53405-55 x -22333-115 x -10681-253 x -4855-971 x -1265
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 1,228,315, 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 | 1,228,315 | |
| -1 | -1,228,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,228,315.
Example:
1 x 1,228,315 = 1,228,315
and
-1 x -1,228,315 = 1,228,315
Notice both answers equal 1,228,315
With that explanation out of the way, let's continue. Next, we take the number 1,228,315 and divide it by 2:
1,228,315 ÷ 2 = 614,157.5
If the quotient is a whole number, then 2 and 614,157.5 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 | 1,228,315 | |
| -1 | -1,228,315 |
Now, we try dividing 1,228,315 by 3:
1,228,315 ÷ 3 = 409,438.3333
If the quotient is a whole number, then 3 and 409,438.3333 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 | 1,228,315 | |
| -1 | -1,228,315 |
Let's try dividing by 4:
1,228,315 ÷ 4 = 307,078.75
If the quotient is a whole number, then 4 and 307,078.75 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 | 1,228,315 | |
| -1 | 1,228,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 23 | 55 | 115 | 253 | 971 | 1,265 | 4,855 | 10,681 | 22,333 | 53,405 | 111,665 | 245,663 | 1,228,315 |
| -1 | -5 | -11 | -23 | -55 | -115 | -253 | -971 | -1,265 | -4,855 | -10,681 | -22,333 | -53,405 | -111,665 | -245,663 | -1,228,315 |
Here are some more numbers to try:
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