A:
Positive:
1 x 2105354237 x 3007648959 x 3568397413 x 509771709 x 296947719 x 2928174963 x 424215033 x 41831
Negative:
-1 x -210535423-7 x -30076489-59 x -3568397-413 x -509771-709 x -296947-719 x -292817-4963 x -42421-5033 x -41831
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 210,535,423, 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 | 210,535,423 | |
| -1 | -210,535,423 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 210,535,423.
Example:
1 x 210,535,423 = 210,535,423
and
-1 x -210,535,423 = 210,535,423
Notice both answers equal 210,535,423
With that explanation out of the way, let's continue. Next, we take the number 210,535,423 and divide it by 2:
210,535,423 ÷ 2 = 105,267,711.5
If the quotient is a whole number, then 2 and 105,267,711.5 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 | 210,535,423 | |
| -1 | -210,535,423 |
Now, we try dividing 210,535,423 by 3:
210,535,423 ÷ 3 = 70,178,474.3333
If the quotient is a whole number, then 3 and 70,178,474.3333 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 | 210,535,423 | |
| -1 | -210,535,423 |
Let's try dividing by 4:
210,535,423 ÷ 4 = 52,633,855.75
If the quotient is a whole number, then 4 and 52,633,855.75 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 | 210,535,423 | |
| -1 | 210,535,423 |
If you did it right, you will end up with this table:
| 1 | 7 | 59 | 413 | 709 | 719 | 4,963 | 5,033 | 41,831 | 42,421 | 292,817 | 296,947 | 509,771 | 3,568,397 | 30,076,489 | 210,535,423 |
| -1 | -7 | -59 | -413 | -709 | -719 | -4,963 | -5,033 | -41,831 | -42,421 | -292,817 | -296,947 | -509,771 | -3,568,397 | -30,076,489 | -210,535,423 |
Here are some more numbers to try:
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