A:
Positive:
1 x 666230117 x 951757313 x 512484791 x 732121169 x 394219199 x 334789283 x 2354171183 x 563171393 x 478271981 x 336312587 x 257533679 x 18109
Negative:
-1 x -66623011-7 x -9517573-13 x -5124847-91 x -732121-169 x -394219-199 x -334789-283 x -235417-1183 x -56317-1393 x -47827-1981 x -33631-2587 x -25753-3679 x -18109
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 66,623,011, 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 | 66,623,011 | |
| -1 | -66,623,011 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,623,011.
Example:
1 x 66,623,011 = 66,623,011
and
-1 x -66,623,011 = 66,623,011
Notice both answers equal 66,623,011
With that explanation out of the way, let's continue. Next, we take the number 66,623,011 and divide it by 2:
66,623,011 ÷ 2 = 33,311,505.5
If the quotient is a whole number, then 2 and 33,311,505.5 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 | 66,623,011 | |
| -1 | -66,623,011 |
Now, we try dividing 66,623,011 by 3:
66,623,011 ÷ 3 = 22,207,670.3333
If the quotient is a whole number, then 3 and 22,207,670.3333 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 | 66,623,011 | |
| -1 | -66,623,011 |
Let's try dividing by 4:
66,623,011 ÷ 4 = 16,655,752.75
If the quotient is a whole number, then 4 and 16,655,752.75 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 | 66,623,011 | |
| -1 | 66,623,011 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 169 | 199 | 283 | 1,183 | 1,393 | 1,981 | 2,587 | 3,679 | 18,109 | 25,753 | 33,631 | 47,827 | 56,317 | 235,417 | 334,789 | 394,219 | 732,121 | 5,124,847 | 9,517,573 | 66,623,011 |
| -1 | -7 | -13 | -91 | -169 | -199 | -283 | -1,183 | -1,393 | -1,981 | -2,587 | -3,679 | -18,109 | -25,753 | -33,631 | -47,827 | -56,317 | -235,417 | -334,789 | -394,219 | -732,121 | -5,124,847 | -9,517,573 | -66,623,011 |
Here are some more numbers to try:
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