A:
Positive:
1 x 1476427155 x 2952854311 x 1342206555 x 26844131181 x 1250152273 x 649555905 x 2500311365 x 12991
Negative:
-1 x -147642715-5 x -29528543-11 x -13422065-55 x -2684413-1181 x -125015-2273 x -64955-5905 x -25003-11365 x -12991
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 147,642,715, 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 | 147,642,715 | |
| -1 | -147,642,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 147,642,715.
Example:
1 x 147,642,715 = 147,642,715
and
-1 x -147,642,715 = 147,642,715
Notice both answers equal 147,642,715
With that explanation out of the way, let's continue. Next, we take the number 147,642,715 and divide it by 2:
147,642,715 ÷ 2 = 73,821,357.5
If the quotient is a whole number, then 2 and 73,821,357.5 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 | 147,642,715 | |
| -1 | -147,642,715 |
Now, we try dividing 147,642,715 by 3:
147,642,715 ÷ 3 = 49,214,238.3333
If the quotient is a whole number, then 3 and 49,214,238.3333 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 | 147,642,715 | |
| -1 | -147,642,715 |
Let's try dividing by 4:
147,642,715 ÷ 4 = 36,910,678.75
If the quotient is a whole number, then 4 and 36,910,678.75 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 | 147,642,715 | |
| -1 | 147,642,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 1,181 | 2,273 | 5,905 | 11,365 | 12,991 | 25,003 | 64,955 | 125,015 | 2,684,413 | 13,422,065 | 29,528,543 | 147,642,715 |
| -1 | -5 | -11 | -55 | -1,181 | -2,273 | -5,905 | -11,365 | -12,991 | -25,003 | -64,955 | -125,015 | -2,684,413 | -13,422,065 | -29,528,543 | -147,642,715 |
Here are some more numbers to try:
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