A:
Positive:
1 x 150748437 x 215354953 x 284431179 x 84217227 x 66409371 x 406331253 x 120311589 x 9487
Negative:
-1 x -15074843-7 x -2153549-53 x -284431-179 x -84217-227 x -66409-371 x -40633-1253 x -12031-1589 x -9487
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 15,074,843, 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 | 15,074,843 | |
| -1 | -15,074,843 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,074,843.
Example:
1 x 15,074,843 = 15,074,843
and
-1 x -15,074,843 = 15,074,843
Notice both answers equal 15,074,843
With that explanation out of the way, let's continue. Next, we take the number 15,074,843 and divide it by 2:
15,074,843 ÷ 2 = 7,537,421.5
If the quotient is a whole number, then 2 and 7,537,421.5 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 | 15,074,843 | |
| -1 | -15,074,843 |
Now, we try dividing 15,074,843 by 3:
15,074,843 ÷ 3 = 5,024,947.6667
If the quotient is a whole number, then 3 and 5,024,947.6667 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 | 15,074,843 | |
| -1 | -15,074,843 |
Let's try dividing by 4:
15,074,843 ÷ 4 = 3,768,710.75
If the quotient is a whole number, then 4 and 3,768,710.75 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 | 15,074,843 | |
| -1 | 15,074,843 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 179 | 227 | 371 | 1,253 | 1,589 | 9,487 | 12,031 | 40,633 | 66,409 | 84,217 | 284,431 | 2,153,549 | 15,074,843 |
| -1 | -7 | -53 | -179 | -227 | -371 | -1,253 | -1,589 | -9,487 | -12,031 | -40,633 | -66,409 | -84,217 | -284,431 | -2,153,549 | -15,074,843 |
Here are some more numbers to try:
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