A:
Positive:
1 x 16534217 x 23620311 x 15031177 x 21473109 x 15169197 x 8393763 x 21671199 x 1379
Negative:
-1 x -1653421-7 x -236203-11 x -150311-77 x -21473-109 x -15169-197 x -8393-763 x -2167-1199 x -1379
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 1,653,421, 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 | 1,653,421 | |
| -1 | -1,653,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,653,421.
Example:
1 x 1,653,421 = 1,653,421
and
-1 x -1,653,421 = 1,653,421
Notice both answers equal 1,653,421
With that explanation out of the way, let's continue. Next, we take the number 1,653,421 and divide it by 2:
1,653,421 ÷ 2 = 826,710.5
If the quotient is a whole number, then 2 and 826,710.5 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 | 1,653,421 | |
| -1 | -1,653,421 |
Now, we try dividing 1,653,421 by 3:
1,653,421 ÷ 3 = 551,140.3333
If the quotient is a whole number, then 3 and 551,140.3333 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 | 1,653,421 | |
| -1 | -1,653,421 |
Let's try dividing by 4:
1,653,421 ÷ 4 = 413,355.25
If the quotient is a whole number, then 4 and 413,355.25 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 | 1,653,421 | |
| -1 | 1,653,421 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 109 | 197 | 763 | 1,199 | 1,379 | 2,167 | 8,393 | 15,169 | 21,473 | 150,311 | 236,203 | 1,653,421 |
| -1 | -7 | -11 | -77 | -109 | -197 | -763 | -1,199 | -1,379 | -2,167 | -8,393 | -15,169 | -21,473 | -150,311 | -236,203 | -1,653,421 |
Here are some more numbers to try:
Try the factor calculator