A:
Positive:
1 x 9035676111 x 821425119 x 475561997 x 931513209 x 4323291067 x 846831843 x 490274457 x 20273
Negative:
-1 x -90356761-11 x -8214251-19 x -4755619-97 x -931513-209 x -432329-1067 x -84683-1843 x -49027-4457 x -20273
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 90,356,761, 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 | 90,356,761 | |
| -1 | -90,356,761 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 90,356,761.
Example:
1 x 90,356,761 = 90,356,761
and
-1 x -90,356,761 = 90,356,761
Notice both answers equal 90,356,761
With that explanation out of the way, let's continue. Next, we take the number 90,356,761 and divide it by 2:
90,356,761 ÷ 2 = 45,178,380.5
If the quotient is a whole number, then 2 and 45,178,380.5 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 | 90,356,761 | |
| -1 | -90,356,761 |
Now, we try dividing 90,356,761 by 3:
90,356,761 ÷ 3 = 30,118,920.3333
If the quotient is a whole number, then 3 and 30,118,920.3333 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 | 90,356,761 | |
| -1 | -90,356,761 |
Let's try dividing by 4:
90,356,761 ÷ 4 = 22,589,190.25
If the quotient is a whole number, then 4 and 22,589,190.25 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 | 90,356,761 | |
| -1 | 90,356,761 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 97 | 209 | 1,067 | 1,843 | 4,457 | 20,273 | 49,027 | 84,683 | 432,329 | 931,513 | 4,755,619 | 8,214,251 | 90,356,761 |
| -1 | -11 | -19 | -97 | -209 | -1,067 | -1,843 | -4,457 | -20,273 | -49,027 | -84,683 | -432,329 | -931,513 | -4,755,619 | -8,214,251 | -90,356,761 |
Here are some more numbers to try:
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