A:
Positive:
1 x 134554497 x 192220717 x 79149729 x 46398149 x 274601119 x 113071203 x 66283493 x 27293557 x 24157833 x 161531421 x 94693451 x 3899
Negative:
-1 x -13455449-7 x -1922207-17 x -791497-29 x -463981-49 x -274601-119 x -113071-203 x -66283-493 x -27293-557 x -24157-833 x -16153-1421 x -9469-3451 x -3899
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 13,455,449, 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 | 13,455,449 | |
| -1 | -13,455,449 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,455,449.
Example:
1 x 13,455,449 = 13,455,449
and
-1 x -13,455,449 = 13,455,449
Notice both answers equal 13,455,449
With that explanation out of the way, let's continue. Next, we take the number 13,455,449 and divide it by 2:
13,455,449 ÷ 2 = 6,727,724.5
If the quotient is a whole number, then 2 and 6,727,724.5 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 | 13,455,449 | |
| -1 | -13,455,449 |
Now, we try dividing 13,455,449 by 3:
13,455,449 ÷ 3 = 4,485,149.6667
If the quotient is a whole number, then 3 and 4,485,149.6667 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 | 13,455,449 | |
| -1 | -13,455,449 |
Let's try dividing by 4:
13,455,449 ÷ 4 = 3,363,862.25
If the quotient is a whole number, then 4 and 3,363,862.25 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 | 13,455,449 | |
| -1 | 13,455,449 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 29 | 49 | 119 | 203 | 493 | 557 | 833 | 1,421 | 3,451 | 3,899 | 9,469 | 16,153 | 24,157 | 27,293 | 66,283 | 113,071 | 274,601 | 463,981 | 791,497 | 1,922,207 | 13,455,449 |
| -1 | -7 | -17 | -29 | -49 | -119 | -203 | -493 | -557 | -833 | -1,421 | -3,451 | -3,899 | -9,469 | -16,153 | -24,157 | -27,293 | -66,283 | -113,071 | -274,601 | -463,981 | -791,497 | -1,922,207 | -13,455,449 |
Here are some more numbers to try:
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