A:
Positive:
1 x 16728655 x 33457329 x 5768583 x 20155139 x 12035145 x 11537415 x 4031695 x 2407
Negative:
-1 x -1672865-5 x -334573-29 x -57685-83 x -20155-139 x -12035-145 x -11537-415 x -4031-695 x -2407
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 1,672,865, 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 | 1,672,865 | |
| -1 | -1,672,865 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,672,865.
Example:
1 x 1,672,865 = 1,672,865
and
-1 x -1,672,865 = 1,672,865
Notice both answers equal 1,672,865
With that explanation out of the way, let's continue. Next, we take the number 1,672,865 and divide it by 2:
1,672,865 ÷ 2 = 836,432.5
If the quotient is a whole number, then 2 and 836,432.5 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 | 1,672,865 | |
| -1 | -1,672,865 |
Now, we try dividing 1,672,865 by 3:
1,672,865 ÷ 3 = 557,621.6667
If the quotient is a whole number, then 3 and 557,621.6667 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 | 1,672,865 | |
| -1 | -1,672,865 |
Let's try dividing by 4:
1,672,865 ÷ 4 = 418,216.25
If the quotient is a whole number, then 4 and 418,216.25 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 | 1,672,865 | |
| -1 | 1,672,865 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 83 | 139 | 145 | 415 | 695 | 2,407 | 4,031 | 11,537 | 12,035 | 20,155 | 57,685 | 334,573 | 1,672,865 |
| -1 | -5 | -29 | -83 | -139 | -145 | -415 | -695 | -2,407 | -4,031 | -11,537 | -12,035 | -20,155 | -57,685 | -334,573 | -1,672,865 |
Here are some more numbers to try:
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