A:
Positive:
1 x 5116614113 x 393585717 x 3009773127 x 402883221 x 2315211651 x 309911823 x 280672159 x 23699
Negative:
-1 x -51166141-13 x -3935857-17 x -3009773-127 x -402883-221 x -231521-1651 x -30991-1823 x -28067-2159 x -23699
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 51,166,141, 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 | 51,166,141 | |
| -1 | -51,166,141 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,166,141.
Example:
1 x 51,166,141 = 51,166,141
and
-1 x -51,166,141 = 51,166,141
Notice both answers equal 51,166,141
With that explanation out of the way, let's continue. Next, we take the number 51,166,141 and divide it by 2:
51,166,141 ÷ 2 = 25,583,070.5
If the quotient is a whole number, then 2 and 25,583,070.5 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 | 51,166,141 | |
| -1 | -51,166,141 |
Now, we try dividing 51,166,141 by 3:
51,166,141 ÷ 3 = 17,055,380.3333
If the quotient is a whole number, then 3 and 17,055,380.3333 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 | 51,166,141 | |
| -1 | -51,166,141 |
Let's try dividing by 4:
51,166,141 ÷ 4 = 12,791,535.25
If the quotient is a whole number, then 4 and 12,791,535.25 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 | 51,166,141 | |
| -1 | 51,166,141 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 127 | 221 | 1,651 | 1,823 | 2,159 | 23,699 | 28,067 | 30,991 | 231,521 | 402,883 | 3,009,773 | 3,935,857 | 51,166,141 |
| -1 | -13 | -17 | -127 | -221 | -1,651 | -1,823 | -2,159 | -23,699 | -28,067 | -30,991 | -231,521 | -402,883 | -3,009,773 | -3,935,857 | -51,166,141 |
Here are some more numbers to try:
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