A:
Positive:
1 x 2104136355 x 4208272737 x 5686855185 x 1137371881 x 2388351291 x 1629854405 x 477676455 x 32597
Negative:
-1 x -210413635-5 x -42082727-37 x -5686855-185 x -1137371-881 x -238835-1291 x -162985-4405 x -47767-6455 x -32597
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 210,413,635, 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 | 210,413,635 | |
| -1 | -210,413,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 210,413,635.
Example:
1 x 210,413,635 = 210,413,635
and
-1 x -210,413,635 = 210,413,635
Notice both answers equal 210,413,635
With that explanation out of the way, let's continue. Next, we take the number 210,413,635 and divide it by 2:
210,413,635 ÷ 2 = 105,206,817.5
If the quotient is a whole number, then 2 and 105,206,817.5 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 | 210,413,635 | |
| -1 | -210,413,635 |
Now, we try dividing 210,413,635 by 3:
210,413,635 ÷ 3 = 70,137,878.3333
If the quotient is a whole number, then 3 and 70,137,878.3333 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 | 210,413,635 | |
| -1 | -210,413,635 |
Let's try dividing by 4:
210,413,635 ÷ 4 = 52,603,408.75
If the quotient is a whole number, then 4 and 52,603,408.75 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 | 210,413,635 | |
| -1 | 210,413,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 881 | 1,291 | 4,405 | 6,455 | 32,597 | 47,767 | 162,985 | 238,835 | 1,137,371 | 5,686,855 | 42,082,727 | 210,413,635 |
| -1 | -5 | -37 | -185 | -881 | -1,291 | -4,405 | -6,455 | -32,597 | -47,767 | -162,985 | -238,835 | -1,137,371 | -5,686,855 | -42,082,727 | -210,413,635 |
Here are some more numbers to try:
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