A:
Positive:
1 x 126547855 x 253095711 x 115043513 x 97344555 x 23008765 x 194689121 x 104585143 x 88495605 x 20917715 x 176991573 x 80451609 x 7865
Negative:
-1 x -12654785-5 x -2530957-11 x -1150435-13 x -973445-55 x -230087-65 x -194689-121 x -104585-143 x -88495-605 x -20917-715 x -17699-1573 x -8045-1609 x -7865
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 12,654,785, 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 | 12,654,785 | |
| -1 | -12,654,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,654,785.
Example:
1 x 12,654,785 = 12,654,785
and
-1 x -12,654,785 = 12,654,785
Notice both answers equal 12,654,785
With that explanation out of the way, let's continue. Next, we take the number 12,654,785 and divide it by 2:
12,654,785 ÷ 2 = 6,327,392.5
If the quotient is a whole number, then 2 and 6,327,392.5 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 | 12,654,785 | |
| -1 | -12,654,785 |
Now, we try dividing 12,654,785 by 3:
12,654,785 ÷ 3 = 4,218,261.6667
If the quotient is a whole number, then 3 and 4,218,261.6667 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 | 12,654,785 | |
| -1 | -12,654,785 |
Let's try dividing by 4:
12,654,785 ÷ 4 = 3,163,696.25
If the quotient is a whole number, then 4 and 3,163,696.25 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 | 12,654,785 | |
| -1 | 12,654,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 55 | 65 | 121 | 143 | 605 | 715 | 1,573 | 1,609 | 7,865 | 8,045 | 17,699 | 20,917 | 88,495 | 104,585 | 194,689 | 230,087 | 973,445 | 1,150,435 | 2,530,957 | 12,654,785 |
| -1 | -5 | -11 | -13 | -55 | -65 | -121 | -143 | -605 | -715 | -1,573 | -1,609 | -7,865 | -8,045 | -17,699 | -20,917 | -88,495 | -104,585 | -194,689 | -230,087 | -973,445 | -1,150,435 | -2,530,957 | -12,654,785 |
Here are some more numbers to try:
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