A:
Positive:
1 x 2021523497 x 2887890737 x 546357759 x 3426311259 x 780511413 x 4894732183 x 9260313229 x 15281
Negative:
-1 x -202152349-7 x -28878907-37 x -5463577-59 x -3426311-259 x -780511-413 x -489473-2183 x -92603-13229 x -15281
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 202,152,349, 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 | 202,152,349 | |
| -1 | -202,152,349 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 202,152,349.
Example:
1 x 202,152,349 = 202,152,349
and
-1 x -202,152,349 = 202,152,349
Notice both answers equal 202,152,349
With that explanation out of the way, let's continue. Next, we take the number 202,152,349 and divide it by 2:
202,152,349 ÷ 2 = 101,076,174.5
If the quotient is a whole number, then 2 and 101,076,174.5 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 | 202,152,349 | |
| -1 | -202,152,349 |
Now, we try dividing 202,152,349 by 3:
202,152,349 ÷ 3 = 67,384,116.3333
If the quotient is a whole number, then 3 and 67,384,116.3333 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 | 202,152,349 | |
| -1 | -202,152,349 |
Let's try dividing by 4:
202,152,349 ÷ 4 = 50,538,087.25
If the quotient is a whole number, then 4 and 50,538,087.25 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 | 202,152,349 | |
| -1 | 202,152,349 |
If you did it right, you will end up with this table:
| 1 | 7 | 37 | 59 | 259 | 413 | 2,183 | 13,229 | 15,281 | 92,603 | 489,473 | 780,511 | 3,426,311 | 5,463,577 | 28,878,907 | 202,152,349 |
| -1 | -7 | -37 | -59 | -259 | -413 | -2,183 | -13,229 | -15,281 | -92,603 | -489,473 | -780,511 | -3,426,311 | -5,463,577 | -28,878,907 | -202,152,349 |
Here are some more numbers to try:
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