A:
Positive:
1 x 158557637 x 226510911 x 144143323 x 68938149 x 32358777 x 205919161 x 98483253 x 62671539 x 294171127 x 140691279 x 123971771 x 8953
Negative:
-1 x -15855763-7 x -2265109-11 x -1441433-23 x -689381-49 x -323587-77 x -205919-161 x -98483-253 x -62671-539 x -29417-1127 x -14069-1279 x -12397-1771 x -8953
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 15,855,763, 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 | 15,855,763 | |
| -1 | -15,855,763 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,855,763.
Example:
1 x 15,855,763 = 15,855,763
and
-1 x -15,855,763 = 15,855,763
Notice both answers equal 15,855,763
With that explanation out of the way, let's continue. Next, we take the number 15,855,763 and divide it by 2:
15,855,763 ÷ 2 = 7,927,881.5
If the quotient is a whole number, then 2 and 7,927,881.5 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 | 15,855,763 | |
| -1 | -15,855,763 |
Now, we try dividing 15,855,763 by 3:
15,855,763 ÷ 3 = 5,285,254.3333
If the quotient is a whole number, then 3 and 5,285,254.3333 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 | 15,855,763 | |
| -1 | -15,855,763 |
Let's try dividing by 4:
15,855,763 ÷ 4 = 3,963,940.75
If the quotient is a whole number, then 4 and 3,963,940.75 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 | 15,855,763 | |
| -1 | 15,855,763 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 23 | 49 | 77 | 161 | 253 | 539 | 1,127 | 1,279 | 1,771 | 8,953 | 12,397 | 14,069 | 29,417 | 62,671 | 98,483 | 205,919 | 323,587 | 689,381 | 1,441,433 | 2,265,109 | 15,855,763 |
| -1 | -7 | -11 | -23 | -49 | -77 | -161 | -253 | -539 | -1,127 | -1,279 | -1,771 | -8,953 | -12,397 | -14,069 | -29,417 | -62,671 | -98,483 | -205,919 | -323,587 | -689,381 | -1,441,433 | -2,265,109 | -15,855,763 |
Here are some more numbers to try:
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