A:
Positive:
1 x 13915867911 x 1265078919 x 7324141209 x 665831811 x 171589821 x 1694998921 x 155999031 x 15409
Negative:
-1 x -139158679-11 x -12650789-19 x -7324141-209 x -665831-811 x -171589-821 x -169499-8921 x -15599-9031 x -15409
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 139,158,679, 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 | 139,158,679 | |
| -1 | -139,158,679 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 139,158,679.
Example:
1 x 139,158,679 = 139,158,679
and
-1 x -139,158,679 = 139,158,679
Notice both answers equal 139,158,679
With that explanation out of the way, let's continue. Next, we take the number 139,158,679 and divide it by 2:
139,158,679 ÷ 2 = 69,579,339.5
If the quotient is a whole number, then 2 and 69,579,339.5 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 | 139,158,679 | |
| -1 | -139,158,679 |
Now, we try dividing 139,158,679 by 3:
139,158,679 ÷ 3 = 46,386,226.3333
If the quotient is a whole number, then 3 and 46,386,226.3333 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 | 139,158,679 | |
| -1 | -139,158,679 |
Let's try dividing by 4:
139,158,679 ÷ 4 = 34,789,669.75
If the quotient is a whole number, then 4 and 34,789,669.75 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 | 139,158,679 | |
| -1 | 139,158,679 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 811 | 821 | 8,921 | 9,031 | 15,409 | 15,599 | 169,499 | 171,589 | 665,831 | 7,324,141 | 12,650,789 | 139,158,679 |
| -1 | -11 | -19 | -209 | -811 | -821 | -8,921 | -9,031 | -15,409 | -15,599 | -169,499 | -171,589 | -665,831 | -7,324,141 | -12,650,789 | -139,158,679 |
Here are some more numbers to try:
Try the factor calculator