A:
Positive:
1 x 842803455 x 1685606961 x 1381645137 x 615185305 x 276329685 x 1230372017 x 417858357 x 10085
Negative:
-1 x -84280345-5 x -16856069-61 x -1381645-137 x -615185-305 x -276329-685 x -123037-2017 x -41785-8357 x -10085
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 84,280,345, 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 | 84,280,345 | |
| -1 | -84,280,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 84,280,345.
Example:
1 x 84,280,345 = 84,280,345
and
-1 x -84,280,345 = 84,280,345
Notice both answers equal 84,280,345
With that explanation out of the way, let's continue. Next, we take the number 84,280,345 and divide it by 2:
84,280,345 ÷ 2 = 42,140,172.5
If the quotient is a whole number, then 2 and 42,140,172.5 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 | 84,280,345 | |
| -1 | -84,280,345 |
Now, we try dividing 84,280,345 by 3:
84,280,345 ÷ 3 = 28,093,448.3333
If the quotient is a whole number, then 3 and 28,093,448.3333 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 | 84,280,345 | |
| -1 | -84,280,345 |
Let's try dividing by 4:
84,280,345 ÷ 4 = 21,070,086.25
If the quotient is a whole number, then 4 and 21,070,086.25 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 | 84,280,345 | |
| -1 | 84,280,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 61 | 137 | 305 | 685 | 2,017 | 8,357 | 10,085 | 41,785 | 123,037 | 276,329 | 615,185 | 1,381,645 | 16,856,069 | 84,280,345 |
| -1 | -5 | -61 | -137 | -305 | -685 | -2,017 | -8,357 | -10,085 | -41,785 | -123,037 | -276,329 | -615,185 | -1,381,645 | -16,856,069 | -84,280,345 |
Here are some more numbers to try:
Try the factor calculator