A:
Positive:
1 x 6601336313 x 507795117 x 3883139221 x 298703281 x 2349231063 x 621013653 x 180714777 x 13819
Negative:
-1 x -66013363-13 x -5077951-17 x -3883139-221 x -298703-281 x -234923-1063 x -62101-3653 x -18071-4777 x -13819
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 66,013,363, 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 | 66,013,363 | |
| -1 | -66,013,363 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,013,363.
Example:
1 x 66,013,363 = 66,013,363
and
-1 x -66,013,363 = 66,013,363
Notice both answers equal 66,013,363
With that explanation out of the way, let's continue. Next, we take the number 66,013,363 and divide it by 2:
66,013,363 ÷ 2 = 33,006,681.5
If the quotient is a whole number, then 2 and 33,006,681.5 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 | 66,013,363 | |
| -1 | -66,013,363 |
Now, we try dividing 66,013,363 by 3:
66,013,363 ÷ 3 = 22,004,454.3333
If the quotient is a whole number, then 3 and 22,004,454.3333 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 | 66,013,363 | |
| -1 | -66,013,363 |
Let's try dividing by 4:
66,013,363 ÷ 4 = 16,503,340.75
If the quotient is a whole number, then 4 and 16,503,340.75 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 | 66,013,363 | |
| -1 | 66,013,363 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 221 | 281 | 1,063 | 3,653 | 4,777 | 13,819 | 18,071 | 62,101 | 234,923 | 298,703 | 3,883,139 | 5,077,951 | 66,013,363 |
| -1 | -13 | -17 | -221 | -281 | -1,063 | -3,653 | -4,777 | -13,819 | -18,071 | -62,101 | -234,923 | -298,703 | -3,883,139 | -5,077,951 | -66,013,363 |
Here are some more numbers to try:
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