A:
Positive:
1 x 2112504355 x 4225008711 x 1920458555 x 38409171069 x 1976153593 x 587955345 x 3952311759 x 17965
Negative:
-1 x -211250435-5 x -42250087-11 x -19204585-55 x -3840917-1069 x -197615-3593 x -58795-5345 x -39523-11759 x -17965
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 211,250,435, 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 | 211,250,435 | |
| -1 | -211,250,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 211,250,435.
Example:
1 x 211,250,435 = 211,250,435
and
-1 x -211,250,435 = 211,250,435
Notice both answers equal 211,250,435
With that explanation out of the way, let's continue. Next, we take the number 211,250,435 and divide it by 2:
211,250,435 ÷ 2 = 105,625,217.5
If the quotient is a whole number, then 2 and 105,625,217.5 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 | 211,250,435 | |
| -1 | -211,250,435 |
Now, we try dividing 211,250,435 by 3:
211,250,435 ÷ 3 = 70,416,811.6667
If the quotient is a whole number, then 3 and 70,416,811.6667 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 | 211,250,435 | |
| -1 | -211,250,435 |
Let's try dividing by 4:
211,250,435 ÷ 4 = 52,812,608.75
If the quotient is a whole number, then 4 and 52,812,608.75 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 | 211,250,435 | |
| -1 | 211,250,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 1,069 | 3,593 | 5,345 | 11,759 | 17,965 | 39,523 | 58,795 | 197,615 | 3,840,917 | 19,204,585 | 42,250,087 | 211,250,435 |
| -1 | -5 | -11 | -55 | -1,069 | -3,593 | -5,345 | -11,759 | -17,965 | -39,523 | -58,795 | -197,615 | -3,840,917 | -19,204,585 | -42,250,087 | -211,250,435 |
Here are some more numbers to try:
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