A:
Positive:
1 x 1152803477 x 1646862113 x 886771923 x 501218991 x 1266817161 x 716027299 x 3855532093 x 55079
Negative:
-1 x -115280347-7 x -16468621-13 x -8867719-23 x -5012189-91 x -1266817-161 x -716027-299 x -385553-2093 x -55079
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 115,280,347, 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 | 115,280,347 | |
| -1 | -115,280,347 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 115,280,347.
Example:
1 x 115,280,347 = 115,280,347
and
-1 x -115,280,347 = 115,280,347
Notice both answers equal 115,280,347
With that explanation out of the way, let's continue. Next, we take the number 115,280,347 and divide it by 2:
115,280,347 ÷ 2 = 57,640,173.5
If the quotient is a whole number, then 2 and 57,640,173.5 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 | 115,280,347 | |
| -1 | -115,280,347 |
Now, we try dividing 115,280,347 by 3:
115,280,347 ÷ 3 = 38,426,782.3333
If the quotient is a whole number, then 3 and 38,426,782.3333 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 | 115,280,347 | |
| -1 | -115,280,347 |
Let's try dividing by 4:
115,280,347 ÷ 4 = 28,820,086.75
If the quotient is a whole number, then 4 and 28,820,086.75 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 | 115,280,347 | |
| -1 | 115,280,347 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 23 | 91 | 161 | 299 | 2,093 | 55,079 | 385,553 | 716,027 | 1,266,817 | 5,012,189 | 8,867,719 | 16,468,621 | 115,280,347 |
| -1 | -7 | -13 | -23 | -91 | -161 | -299 | -2,093 | -55,079 | -385,553 | -716,027 | -1,266,817 | -5,012,189 | -8,867,719 | -16,468,621 | -115,280,347 |
Here are some more numbers to try:
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