A:
Positive:
1 x 16718655 x 33437313 x 12860517 x 9834565 x 2572185 x 1966989 x 18785221 x 7565289 x 5785445 x 37571105 x 15131157 x 1445
Negative:
-1 x -1671865-5 x -334373-13 x -128605-17 x -98345-65 x -25721-85 x -19669-89 x -18785-221 x -7565-289 x -5785-445 x -3757-1105 x -1513-1157 x -1445
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 1,671,865, 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 | 1,671,865 | |
| -1 | -1,671,865 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,671,865.
Example:
1 x 1,671,865 = 1,671,865
and
-1 x -1,671,865 = 1,671,865
Notice both answers equal 1,671,865
With that explanation out of the way, let's continue. Next, we take the number 1,671,865 and divide it by 2:
1,671,865 ÷ 2 = 835,932.5
If the quotient is a whole number, then 2 and 835,932.5 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 | 1,671,865 | |
| -1 | -1,671,865 |
Now, we try dividing 1,671,865 by 3:
1,671,865 ÷ 3 = 557,288.3333
If the quotient is a whole number, then 3 and 557,288.3333 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 | 1,671,865 | |
| -1 | -1,671,865 |
Let's try dividing by 4:
1,671,865 ÷ 4 = 417,966.25
If the quotient is a whole number, then 4 and 417,966.25 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 | 1,671,865 | |
| -1 | 1,671,865 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 17 | 65 | 85 | 89 | 221 | 289 | 445 | 1,105 | 1,157 | 1,445 | 1,513 | 3,757 | 5,785 | 7,565 | 18,785 | 19,669 | 25,721 | 98,345 | 128,605 | 334,373 | 1,671,865 |
| -1 | -5 | -13 | -17 | -65 | -85 | -89 | -221 | -289 | -445 | -1,105 | -1,157 | -1,445 | -1,513 | -3,757 | -5,785 | -7,565 | -18,785 | -19,669 | -25,721 | -98,345 | -128,605 | -334,373 | -1,671,865 |
Here are some more numbers to try:
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