A:
Positive:
1 x 1401415555 x 2802831167 x 2091665335 x 418333487 x 287765859 x 1631452435 x 575534295 x 32629
Negative:
-1 x -140141555-5 x -28028311-67 x -2091665-335 x -418333-487 x -287765-859 x -163145-2435 x -57553-4295 x -32629
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 140,141,555, 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 | 140,141,555 | |
| -1 | -140,141,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,141,555.
Example:
1 x 140,141,555 = 140,141,555
and
-1 x -140,141,555 = 140,141,555
Notice both answers equal 140,141,555
With that explanation out of the way, let's continue. Next, we take the number 140,141,555 and divide it by 2:
140,141,555 ÷ 2 = 70,070,777.5
If the quotient is a whole number, then 2 and 70,070,777.5 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 | 140,141,555 | |
| -1 | -140,141,555 |
Now, we try dividing 140,141,555 by 3:
140,141,555 ÷ 3 = 46,713,851.6667
If the quotient is a whole number, then 3 and 46,713,851.6667 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 | 140,141,555 | |
| -1 | -140,141,555 |
Let's try dividing by 4:
140,141,555 ÷ 4 = 35,035,388.75
If the quotient is a whole number, then 4 and 35,035,388.75 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 | 140,141,555 | |
| -1 | 140,141,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 335 | 487 | 859 | 2,435 | 4,295 | 32,629 | 57,553 | 163,145 | 287,765 | 418,333 | 2,091,665 | 28,028,311 | 140,141,555 |
| -1 | -5 | -67 | -335 | -487 | -859 | -2,435 | -4,295 | -32,629 | -57,553 | -163,145 | -287,765 | -418,333 | -2,091,665 | -28,028,311 | -140,141,555 |
Here are some more numbers to try:
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