A:
Positive:
1 x 1819341711 x 165394717 x 107020159 x 30836397 x 187561187 x 97291289 x 62953649 x 280331003 x 181391067 x 170511649 x 110333179 x 5723
Negative:
-1 x -18193417-11 x -1653947-17 x -1070201-59 x -308363-97 x -187561-187 x -97291-289 x -62953-649 x -28033-1003 x -18139-1067 x -17051-1649 x -11033-3179 x -5723
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 18,193,417, 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 | 18,193,417 | |
| -1 | -18,193,417 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,193,417.
Example:
1 x 18,193,417 = 18,193,417
and
-1 x -18,193,417 = 18,193,417
Notice both answers equal 18,193,417
With that explanation out of the way, let's continue. Next, we take the number 18,193,417 and divide it by 2:
18,193,417 ÷ 2 = 9,096,708.5
If the quotient is a whole number, then 2 and 9,096,708.5 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 | 18,193,417 | |
| -1 | -18,193,417 |
Now, we try dividing 18,193,417 by 3:
18,193,417 ÷ 3 = 6,064,472.3333
If the quotient is a whole number, then 3 and 6,064,472.3333 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 | 18,193,417 | |
| -1 | -18,193,417 |
Let's try dividing by 4:
18,193,417 ÷ 4 = 4,548,354.25
If the quotient is a whole number, then 4 and 4,548,354.25 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 | 18,193,417 | |
| -1 | 18,193,417 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 59 | 97 | 187 | 289 | 649 | 1,003 | 1,067 | 1,649 | 3,179 | 5,723 | 11,033 | 17,051 | 18,139 | 28,033 | 62,953 | 97,291 | 187,561 | 308,363 | 1,070,201 | 1,653,947 | 18,193,417 |
| -1 | -11 | -17 | -59 | -97 | -187 | -289 | -649 | -1,003 | -1,067 | -1,649 | -3,179 | -5,723 | -11,033 | -17,051 | -18,139 | -28,033 | -62,953 | -97,291 | -187,561 | -308,363 | -1,070,201 | -1,653,947 | -18,193,417 |
Here are some more numbers to try:
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