A:
Positive:
1 x 101521455 x 203042917 x 59718583 x 12231585 x 119437415 x 244631411 x 71951439 x 7055
Negative:
-1 x -10152145-5 x -2030429-17 x -597185-83 x -122315-85 x -119437-415 x -24463-1411 x -7195-1439 x -7055
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 10,152,145, 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 | 10,152,145 | |
| -1 | -10,152,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,152,145.
Example:
1 x 10,152,145 = 10,152,145
and
-1 x -10,152,145 = 10,152,145
Notice both answers equal 10,152,145
With that explanation out of the way, let's continue. Next, we take the number 10,152,145 and divide it by 2:
10,152,145 ÷ 2 = 5,076,072.5
If the quotient is a whole number, then 2 and 5,076,072.5 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 | 10,152,145 | |
| -1 | -10,152,145 |
Now, we try dividing 10,152,145 by 3:
10,152,145 ÷ 3 = 3,384,048.3333
If the quotient is a whole number, then 3 and 3,384,048.3333 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 | 10,152,145 | |
| -1 | -10,152,145 |
Let's try dividing by 4:
10,152,145 ÷ 4 = 2,538,036.25
If the quotient is a whole number, then 4 and 2,538,036.25 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 | 10,152,145 | |
| -1 | 10,152,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 83 | 85 | 415 | 1,411 | 1,439 | 7,055 | 7,195 | 24,463 | 119,437 | 122,315 | 597,185 | 2,030,429 | 10,152,145 |
| -1 | -5 | -17 | -83 | -85 | -415 | -1,411 | -1,439 | -7,055 | -7,195 | -24,463 | -119,437 | -122,315 | -597,185 | -2,030,429 | -10,152,145 |
Here are some more numbers to try:
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