A:
Positive:
1 x 514578955 x 1029157917 x 302693585 x 605387149 x 345355239 x 215305289 x 178055745 x 690711195 x 430611445 x 356112533 x 203154063 x 12665
Negative:
-1 x -51457895-5 x -10291579-17 x -3026935-85 x -605387-149 x -345355-239 x -215305-289 x -178055-745 x -69071-1195 x -43061-1445 x -35611-2533 x -20315-4063 x -12665
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 51,457,895, 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 | 51,457,895 | |
| -1 | -51,457,895 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,457,895.
Example:
1 x 51,457,895 = 51,457,895
and
-1 x -51,457,895 = 51,457,895
Notice both answers equal 51,457,895
With that explanation out of the way, let's continue. Next, we take the number 51,457,895 and divide it by 2:
51,457,895 ÷ 2 = 25,728,947.5
If the quotient is a whole number, then 2 and 25,728,947.5 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 | 51,457,895 | |
| -1 | -51,457,895 |
Now, we try dividing 51,457,895 by 3:
51,457,895 ÷ 3 = 17,152,631.6667
If the quotient is a whole number, then 3 and 17,152,631.6667 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 | 51,457,895 | |
| -1 | -51,457,895 |
Let's try dividing by 4:
51,457,895 ÷ 4 = 12,864,473.75
If the quotient is a whole number, then 4 and 12,864,473.75 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 | 51,457,895 | |
| -1 | 51,457,895 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 149 | 239 | 289 | 745 | 1,195 | 1,445 | 2,533 | 4,063 | 12,665 | 20,315 | 35,611 | 43,061 | 69,071 | 178,055 | 215,305 | 345,355 | 605,387 | 3,026,935 | 10,291,579 | 51,457,895 |
| -1 | -5 | -17 | -85 | -149 | -239 | -289 | -745 | -1,195 | -1,445 | -2,533 | -4,063 | -12,665 | -20,315 | -35,611 | -43,061 | -69,071 | -178,055 | -215,305 | -345,355 | -605,387 | -3,026,935 | -10,291,579 | -51,457,895 |
Here are some more numbers to try:
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