A:
Positive:
1 x 16702077 x 23860111 x 15183777 x 21691109 x 15323199 x 8393763 x 21891199 x 1393
Negative:
-1 x -1670207-7 x -238601-11 x -151837-77 x -21691-109 x -15323-199 x -8393-763 x -2189-1199 x -1393
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 1,670,207, 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 | 1,670,207 | |
| -1 | -1,670,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,670,207.
Example:
1 x 1,670,207 = 1,670,207
and
-1 x -1,670,207 = 1,670,207
Notice both answers equal 1,670,207
With that explanation out of the way, let's continue. Next, we take the number 1,670,207 and divide it by 2:
1,670,207 ÷ 2 = 835,103.5
If the quotient is a whole number, then 2 and 835,103.5 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 | 1,670,207 | |
| -1 | -1,670,207 |
Now, we try dividing 1,670,207 by 3:
1,670,207 ÷ 3 = 556,735.6667
If the quotient is a whole number, then 3 and 556,735.6667 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 | 1,670,207 | |
| -1 | -1,670,207 |
Let's try dividing by 4:
1,670,207 ÷ 4 = 417,551.75
If the quotient is a whole number, then 4 and 417,551.75 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 | 1,670,207 | |
| -1 | 1,670,207 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 109 | 199 | 763 | 1,199 | 1,393 | 2,189 | 8,393 | 15,323 | 21,691 | 151,837 | 238,601 | 1,670,207 |
| -1 | -7 | -11 | -77 | -109 | -199 | -763 | -1,199 | -1,393 | -2,189 | -8,393 | -15,323 | -21,691 | -151,837 | -238,601 | -1,670,207 |
Here are some more numbers to try:
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