A:
Positive:
1 x 8534953911 x 775904919 x 449208143 x 1984873209 x 408371473 x 180443817 x 1044678987 x 9497
Negative:
-1 x -85349539-11 x -7759049-19 x -4492081-43 x -1984873-209 x -408371-473 x -180443-817 x -104467-8987 x -9497
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 85,349,539, 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 | 85,349,539 | |
| -1 | -85,349,539 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,349,539.
Example:
1 x 85,349,539 = 85,349,539
and
-1 x -85,349,539 = 85,349,539
Notice both answers equal 85,349,539
With that explanation out of the way, let's continue. Next, we take the number 85,349,539 and divide it by 2:
85,349,539 ÷ 2 = 42,674,769.5
If the quotient is a whole number, then 2 and 42,674,769.5 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 | 85,349,539 | |
| -1 | -85,349,539 |
Now, we try dividing 85,349,539 by 3:
85,349,539 ÷ 3 = 28,449,846.3333
If the quotient is a whole number, then 3 and 28,449,846.3333 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 | 85,349,539 | |
| -1 | -85,349,539 |
Let's try dividing by 4:
85,349,539 ÷ 4 = 21,337,384.75
If the quotient is a whole number, then 4 and 21,337,384.75 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 | 85,349,539 | |
| -1 | 85,349,539 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 43 | 209 | 473 | 817 | 8,987 | 9,497 | 104,467 | 180,443 | 408,371 | 1,984,873 | 4,492,081 | 7,759,049 | 85,349,539 |
| -1 | -11 | -19 | -43 | -209 | -473 | -817 | -8,987 | -9,497 | -104,467 | -180,443 | -408,371 | -1,984,873 | -4,492,081 | -7,759,049 | -85,349,539 |
Here are some more numbers to try:
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