A:
Positive:
1 x 21033364313 x 1617951123 x 914494159 x 3564977299 x 703457767 x 2742291357 x 15499911923 x 17641
Negative:
-1 x -210333643-13 x -16179511-23 x -9144941-59 x -3564977-299 x -703457-767 x -274229-1357 x -154999-11923 x -17641
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 210,333,643, 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 | 210,333,643 | |
| -1 | -210,333,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 210,333,643.
Example:
1 x 210,333,643 = 210,333,643
and
-1 x -210,333,643 = 210,333,643
Notice both answers equal 210,333,643
With that explanation out of the way, let's continue. Next, we take the number 210,333,643 and divide it by 2:
210,333,643 ÷ 2 = 105,166,821.5
If the quotient is a whole number, then 2 and 105,166,821.5 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 | 210,333,643 | |
| -1 | -210,333,643 |
Now, we try dividing 210,333,643 by 3:
210,333,643 ÷ 3 = 70,111,214.3333
If the quotient is a whole number, then 3 and 70,111,214.3333 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 | 210,333,643 | |
| -1 | -210,333,643 |
Let's try dividing by 4:
210,333,643 ÷ 4 = 52,583,410.75
If the quotient is a whole number, then 4 and 52,583,410.75 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 | 210,333,643 | |
| -1 | 210,333,643 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 59 | 299 | 767 | 1,357 | 11,923 | 17,641 | 154,999 | 274,229 | 703,457 | 3,564,977 | 9,144,941 | 16,179,511 | 210,333,643 |
| -1 | -13 | -23 | -59 | -299 | -767 | -1,357 | -11,923 | -17,641 | -154,999 | -274,229 | -703,457 | -3,564,977 | -9,144,941 | -16,179,511 | -210,333,643 |
Here are some more numbers to try:
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