A:
Positive:
1 x 15137655 x 30275311 x 13761517 x 8904555 x 2752385 x 17809187 x 8095935 x 1619
Negative:
-1 x -1513765-5 x -302753-11 x -137615-17 x -89045-55 x -27523-85 x -17809-187 x -8095-935 x -1619
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 1,513,765, 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 | 1,513,765 | |
| -1 | -1,513,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,513,765.
Example:
1 x 1,513,765 = 1,513,765
and
-1 x -1,513,765 = 1,513,765
Notice both answers equal 1,513,765
With that explanation out of the way, let's continue. Next, we take the number 1,513,765 and divide it by 2:
1,513,765 ÷ 2 = 756,882.5
If the quotient is a whole number, then 2 and 756,882.5 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 | 1,513,765 | |
| -1 | -1,513,765 |
Now, we try dividing 1,513,765 by 3:
1,513,765 ÷ 3 = 504,588.3333
If the quotient is a whole number, then 3 and 504,588.3333 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 | 1,513,765 | |
| -1 | -1,513,765 |
Let's try dividing by 4:
1,513,765 ÷ 4 = 378,441.25
If the quotient is a whole number, then 4 and 378,441.25 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 | 1,513,765 | |
| -1 | 1,513,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 1,619 | 8,095 | 17,809 | 27,523 | 89,045 | 137,615 | 302,753 | 1,513,765 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -1,619 | -8,095 | -17,809 | -27,523 | -89,045 | -137,615 | -302,753 | -1,513,765 |
Here are some more numbers to try:
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