A:
Positive:
1 x 15431268123 x 670924737 x 417061343 x 3588667851 x 181331989 x 1560291591 x 969914217 x 36593
Negative:
-1 x -154312681-23 x -6709247-37 x -4170613-43 x -3588667-851 x -181331-989 x -156029-1591 x -96991-4217 x -36593
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 154,312,681, 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 | 154,312,681 | |
| -1 | -154,312,681 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 154,312,681.
Example:
1 x 154,312,681 = 154,312,681
and
-1 x -154,312,681 = 154,312,681
Notice both answers equal 154,312,681
With that explanation out of the way, let's continue. Next, we take the number 154,312,681 and divide it by 2:
154,312,681 ÷ 2 = 77,156,340.5
If the quotient is a whole number, then 2 and 77,156,340.5 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 | 154,312,681 | |
| -1 | -154,312,681 |
Now, we try dividing 154,312,681 by 3:
154,312,681 ÷ 3 = 51,437,560.3333
If the quotient is a whole number, then 3 and 51,437,560.3333 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 | 154,312,681 | |
| -1 | -154,312,681 |
Let's try dividing by 4:
154,312,681 ÷ 4 = 38,578,170.25
If the quotient is a whole number, then 4 and 38,578,170.25 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 | 154,312,681 | |
| -1 | 154,312,681 |
If you did it right, you will end up with this table:
| 1 | 23 | 37 | 43 | 851 | 989 | 1,591 | 4,217 | 36,593 | 96,991 | 156,029 | 181,331 | 3,588,667 | 4,170,613 | 6,709,247 | 154,312,681 |
| -1 | -23 | -37 | -43 | -851 | -989 | -1,591 | -4,217 | -36,593 | -96,991 | -156,029 | -181,331 | -3,588,667 | -4,170,613 | -6,709,247 | -154,312,681 |
Here are some more numbers to try:
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