A:
Positive:
1 x 55114525123 x 2396283753 x 10398967281 x 19613711219 x 4521291609 x 3425396463 x 8527714893 x 37007
Negative:
-1 x -551145251-23 x -23962837-53 x -10398967-281 x -1961371-1219 x -452129-1609 x -342539-6463 x -85277-14893 x -37007
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 551,145,251, 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 | 551,145,251 | |
| -1 | -551,145,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 551,145,251.
Example:
1 x 551,145,251 = 551,145,251
and
-1 x -551,145,251 = 551,145,251
Notice both answers equal 551,145,251
With that explanation out of the way, let's continue. Next, we take the number 551,145,251 and divide it by 2:
551,145,251 ÷ 2 = 275,572,625.5
If the quotient is a whole number, then 2 and 275,572,625.5 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 | 551,145,251 | |
| -1 | -551,145,251 |
Now, we try dividing 551,145,251 by 3:
551,145,251 ÷ 3 = 183,715,083.6667
If the quotient is a whole number, then 3 and 183,715,083.6667 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 | 551,145,251 | |
| -1 | -551,145,251 |
Let's try dividing by 4:
551,145,251 ÷ 4 = 137,786,312.75
If the quotient is a whole number, then 4 and 137,786,312.75 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 | 551,145,251 | |
| -1 | 551,145,251 |
If you did it right, you will end up with this table:
| 1 | 23 | 53 | 281 | 1,219 | 1,609 | 6,463 | 14,893 | 37,007 | 85,277 | 342,539 | 452,129 | 1,961,371 | 10,398,967 | 23,962,837 | 551,145,251 |
| -1 | -23 | -53 | -281 | -1,219 | -1,609 | -6,463 | -14,893 | -37,007 | -85,277 | -342,539 | -452,129 | -1,961,371 | -10,398,967 | -23,962,837 | -551,145,251 |
Here are some more numbers to try:
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