A:
Positive:
1 x 762664217 x 1089520311 x 693331177 x 990473121 x 630301127 x 600523709 x 107569847 x 90043889 x 857891397 x 545934963 x 153677799 x 9779
Negative:
-1 x -76266421-7 x -10895203-11 x -6933311-77 x -990473-121 x -630301-127 x -600523-709 x -107569-847 x -90043-889 x -85789-1397 x -54593-4963 x -15367-7799 x -9779
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 76,266,421, 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 | 76,266,421 | |
| -1 | -76,266,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 76,266,421.
Example:
1 x 76,266,421 = 76,266,421
and
-1 x -76,266,421 = 76,266,421
Notice both answers equal 76,266,421
With that explanation out of the way, let's continue. Next, we take the number 76,266,421 and divide it by 2:
76,266,421 ÷ 2 = 38,133,210.5
If the quotient is a whole number, then 2 and 38,133,210.5 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 | 76,266,421 | |
| -1 | -76,266,421 |
Now, we try dividing 76,266,421 by 3:
76,266,421 ÷ 3 = 25,422,140.3333
If the quotient is a whole number, then 3 and 25,422,140.3333 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 | 76,266,421 | |
| -1 | -76,266,421 |
Let's try dividing by 4:
76,266,421 ÷ 4 = 19,066,605.25
If the quotient is a whole number, then 4 and 19,066,605.25 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 | 76,266,421 | |
| -1 | 76,266,421 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 121 | 127 | 709 | 847 | 889 | 1,397 | 4,963 | 7,799 | 9,779 | 15,367 | 54,593 | 85,789 | 90,043 | 107,569 | 600,523 | 630,301 | 990,473 | 6,933,311 | 10,895,203 | 76,266,421 |
| -1 | -7 | -11 | -77 | -121 | -127 | -709 | -847 | -889 | -1,397 | -4,963 | -7,799 | -9,779 | -15,367 | -54,593 | -85,789 | -90,043 | -107,569 | -600,523 | -630,301 | -990,473 | -6,933,311 | -10,895,203 | -76,266,421 |
Here are some more numbers to try:
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