A:
Positive:
1 x 187539555 x 375079111 x 170490555 x 340981229 x 818951145 x 163791489 x 125952519 x 7445
Negative:
-1 x -18753955-5 x -3750791-11 x -1704905-55 x -340981-229 x -81895-1145 x -16379-1489 x -12595-2519 x -7445
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 18,753,955, 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 | 18,753,955 | |
| -1 | -18,753,955 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,753,955.
Example:
1 x 18,753,955 = 18,753,955
and
-1 x -18,753,955 = 18,753,955
Notice both answers equal 18,753,955
With that explanation out of the way, let's continue. Next, we take the number 18,753,955 and divide it by 2:
18,753,955 ÷ 2 = 9,376,977.5
If the quotient is a whole number, then 2 and 9,376,977.5 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 | 18,753,955 | |
| -1 | -18,753,955 |
Now, we try dividing 18,753,955 by 3:
18,753,955 ÷ 3 = 6,251,318.3333
If the quotient is a whole number, then 3 and 6,251,318.3333 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 | 18,753,955 | |
| -1 | -18,753,955 |
Let's try dividing by 4:
18,753,955 ÷ 4 = 4,688,488.75
If the quotient is a whole number, then 4 and 4,688,488.75 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 | 18,753,955 | |
| -1 | 18,753,955 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 229 | 1,145 | 1,489 | 2,519 | 7,445 | 12,595 | 16,379 | 81,895 | 340,981 | 1,704,905 | 3,750,791 | 18,753,955 |
| -1 | -5 | -11 | -55 | -229 | -1,145 | -1,489 | -2,519 | -7,445 | -12,595 | -16,379 | -81,895 | -340,981 | -1,704,905 | -3,750,791 | -18,753,955 |
Here are some more numbers to try:
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