A:
Positive:
1 x 91364055 x 182728123 x 39723553 x 172385115 x 79447265 x 344771219 x 74951499 x 6095
Negative:
-1 x -9136405-5 x -1827281-23 x -397235-53 x -172385-115 x -79447-265 x -34477-1219 x -7495-1499 x -6095
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 9,136,405, 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 | 9,136,405 | |
| -1 | -9,136,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,136,405.
Example:
1 x 9,136,405 = 9,136,405
and
-1 x -9,136,405 = 9,136,405
Notice both answers equal 9,136,405
With that explanation out of the way, let's continue. Next, we take the number 9,136,405 and divide it by 2:
9,136,405 ÷ 2 = 4,568,202.5
If the quotient is a whole number, then 2 and 4,568,202.5 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 | 9,136,405 | |
| -1 | -9,136,405 |
Now, we try dividing 9,136,405 by 3:
9,136,405 ÷ 3 = 3,045,468.3333
If the quotient is a whole number, then 3 and 3,045,468.3333 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 | 9,136,405 | |
| -1 | -9,136,405 |
Let's try dividing by 4:
9,136,405 ÷ 4 = 2,284,101.25
If the quotient is a whole number, then 4 and 2,284,101.25 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 | 9,136,405 | |
| -1 | 9,136,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 53 | 115 | 265 | 1,219 | 1,499 | 6,095 | 7,495 | 34,477 | 79,447 | 172,385 | 397,235 | 1,827,281 | 9,136,405 |
| -1 | -5 | -23 | -53 | -115 | -265 | -1,219 | -1,499 | -6,095 | -7,495 | -34,477 | -79,447 | -172,385 | -397,235 | -1,827,281 | -9,136,405 |
Here are some more numbers to try:
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