A:
Positive:
1 x 48573917 x 69391311 x 44158177 x 63083199 x 24409317 x 153231393 x 34872189 x 2219
Negative:
-1 x -4857391-7 x -693913-11 x -441581-77 x -63083-199 x -24409-317 x -15323-1393 x -3487-2189 x -2219
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 4,857,391, 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 | 4,857,391 | |
| -1 | -4,857,391 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,857,391.
Example:
1 x 4,857,391 = 4,857,391
and
-1 x -4,857,391 = 4,857,391
Notice both answers equal 4,857,391
With that explanation out of the way, let's continue. Next, we take the number 4,857,391 and divide it by 2:
4,857,391 ÷ 2 = 2,428,695.5
If the quotient is a whole number, then 2 and 2,428,695.5 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 | 4,857,391 | |
| -1 | -4,857,391 |
Now, we try dividing 4,857,391 by 3:
4,857,391 ÷ 3 = 1,619,130.3333
If the quotient is a whole number, then 3 and 1,619,130.3333 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 | 4,857,391 | |
| -1 | -4,857,391 |
Let's try dividing by 4:
4,857,391 ÷ 4 = 1,214,347.75
If the quotient is a whole number, then 4 and 1,214,347.75 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 | 4,857,391 | |
| -1 | 4,857,391 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 199 | 317 | 1,393 | 2,189 | 2,219 | 3,487 | 15,323 | 24,409 | 63,083 | 441,581 | 693,913 | 4,857,391 |
| -1 | -7 | -11 | -77 | -199 | -317 | -1,393 | -2,189 | -2,219 | -3,487 | -15,323 | -24,409 | -63,083 | -441,581 | -693,913 | -4,857,391 |
Here are some more numbers to try:
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