A:
Positive:
1 x 151745237 x 216778913 x 116727117 x 89261991 x 166753119 x 127517221 x 68663289 x 52507577 x 262991547 x 98092023 x 75013757 x 4039
Negative:
-1 x -15174523-7 x -2167789-13 x -1167271-17 x -892619-91 x -166753-119 x -127517-221 x -68663-289 x -52507-577 x -26299-1547 x -9809-2023 x -7501-3757 x -4039
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 15,174,523, 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 | 15,174,523 | |
| -1 | -15,174,523 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,174,523.
Example:
1 x 15,174,523 = 15,174,523
and
-1 x -15,174,523 = 15,174,523
Notice both answers equal 15,174,523
With that explanation out of the way, let's continue. Next, we take the number 15,174,523 and divide it by 2:
15,174,523 ÷ 2 = 7,587,261.5
If the quotient is a whole number, then 2 and 7,587,261.5 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 | 15,174,523 | |
| -1 | -15,174,523 |
Now, we try dividing 15,174,523 by 3:
15,174,523 ÷ 3 = 5,058,174.3333
If the quotient is a whole number, then 3 and 5,058,174.3333 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 | 15,174,523 | |
| -1 | -15,174,523 |
Let's try dividing by 4:
15,174,523 ÷ 4 = 3,793,630.75
If the quotient is a whole number, then 4 and 3,793,630.75 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 | 15,174,523 | |
| -1 | 15,174,523 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 17 | 91 | 119 | 221 | 289 | 577 | 1,547 | 2,023 | 3,757 | 4,039 | 7,501 | 9,809 | 26,299 | 52,507 | 68,663 | 127,517 | 166,753 | 892,619 | 1,167,271 | 2,167,789 | 15,174,523 |
| -1 | -7 | -13 | -17 | -91 | -119 | -221 | -289 | -577 | -1,547 | -2,023 | -3,757 | -4,039 | -7,501 | -9,809 | -26,299 | -52,507 | -68,663 | -127,517 | -166,753 | -892,619 | -1,167,271 | -2,167,789 | -15,174,523 |
Here are some more numbers to try:
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