A:
Positive:
1 x 53871855 x 107743729 x 18576553 x 101645145 x 37153265 x 20329701 x 76851537 x 3505
Negative:
-1 x -5387185-5 x -1077437-29 x -185765-53 x -101645-145 x -37153-265 x -20329-701 x -7685-1537 x -3505
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 5,387,185, 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 | 5,387,185 | |
| -1 | -5,387,185 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,387,185.
Example:
1 x 5,387,185 = 5,387,185
and
-1 x -5,387,185 = 5,387,185
Notice both answers equal 5,387,185
With that explanation out of the way, let's continue. Next, we take the number 5,387,185 and divide it by 2:
5,387,185 ÷ 2 = 2,693,592.5
If the quotient is a whole number, then 2 and 2,693,592.5 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 | 5,387,185 | |
| -1 | -5,387,185 |
Now, we try dividing 5,387,185 by 3:
5,387,185 ÷ 3 = 1,795,728.3333
If the quotient is a whole number, then 3 and 1,795,728.3333 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 | 5,387,185 | |
| -1 | -5,387,185 |
Let's try dividing by 4:
5,387,185 ÷ 4 = 1,346,796.25
If the quotient is a whole number, then 4 and 1,346,796.25 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 | 5,387,185 | |
| -1 | 5,387,185 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 53 | 145 | 265 | 701 | 1,537 | 3,505 | 7,685 | 20,329 | 37,153 | 101,645 | 185,765 | 1,077,437 | 5,387,185 |
| -1 | -5 | -29 | -53 | -145 | -265 | -701 | -1,537 | -3,505 | -7,685 | -20,329 | -37,153 | -101,645 | -185,765 | -1,077,437 | -5,387,185 |
Here are some more numbers to try:
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