A:
Positive:
1 x 7617812237 x 10882588967 x 1136986971 x 10729313469 x 1624267497 x 15327594757 x 16013922877 x 33299
Negative:
-1 x -761781223-7 x -108825889-67 x -11369869-71 x -10729313-469 x -1624267-497 x -1532759-4757 x -160139-22877 x -33299
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 761,781,223, 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 | 761,781,223 | |
| -1 | -761,781,223 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 761,781,223.
Example:
1 x 761,781,223 = 761,781,223
and
-1 x -761,781,223 = 761,781,223
Notice both answers equal 761,781,223
With that explanation out of the way, let's continue. Next, we take the number 761,781,223 and divide it by 2:
761,781,223 ÷ 2 = 380,890,611.5
If the quotient is a whole number, then 2 and 380,890,611.5 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 | 761,781,223 | |
| -1 | -761,781,223 |
Now, we try dividing 761,781,223 by 3:
761,781,223 ÷ 3 = 253,927,074.3333
If the quotient is a whole number, then 3 and 253,927,074.3333 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 | 761,781,223 | |
| -1 | -761,781,223 |
Let's try dividing by 4:
761,781,223 ÷ 4 = 190,445,305.75
If the quotient is a whole number, then 4 and 190,445,305.75 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 | 761,781,223 | |
| -1 | 761,781,223 |
If you did it right, you will end up with this table:
| 1 | 7 | 67 | 71 | 469 | 497 | 4,757 | 22,877 | 33,299 | 160,139 | 1,532,759 | 1,624,267 | 10,729,313 | 11,369,869 | 108,825,889 | 761,781,223 |
| -1 | -7 | -67 | -71 | -469 | -497 | -4,757 | -22,877 | -33,299 | -160,139 | -1,532,759 | -1,624,267 | -10,729,313 | -11,369,869 | -108,825,889 | -761,781,223 |
Here are some more numbers to try:
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