Q: What are the factor combinations of the number 1,388,556?

 A:
Positive:   1 x 13885562 x 6942783 x 4628524 x 3471396 x 2314269 x 15428412 x 11571313 x 10681218 x 7714223 x 6037226 x 5340627 x 5142836 x 3857139 x 3560443 x 3229246 x 3018652 x 2670354 x 2571469 x 2012478 x 1780286 x 1614692 x 15093108 x 12857117 x 11868129 x 10764138 x 10062156 x 8901172 x 8073207 x 6708234 x 5934258 x 5382276 x 5031299 x 4644351 x 3956387 x 3588414 x 3354468 x 2967516 x 2691559 x 2484598 x 2322621 x 2236702 x 1978774 x 1794828 x 1677897 x 1548989 x 14041118 x 12421161 x 1196
Negative: -1 x -1388556-2 x -694278-3 x -462852-4 x -347139-6 x -231426-9 x -154284-12 x -115713-13 x -106812-18 x -77142-23 x -60372-26 x -53406-27 x -51428-36 x -38571-39 x -35604-43 x -32292-46 x -30186-52 x -26703-54 x -25714-69 x -20124-78 x -17802-86 x -16146-92 x -15093-108 x -12857-117 x -11868-129 x -10764-138 x -10062-156 x -8901-172 x -8073-207 x -6708-234 x -5934-258 x -5382-276 x -5031-299 x -4644-351 x -3956-387 x -3588-414 x -3354-468 x -2967-516 x -2691-559 x -2484-598 x -2322-621 x -2236-702 x -1978-774 x -1794-828 x -1677-897 x -1548-989 x -1404-1118 x -1242-1161 x -1196


How do I find the factor combinations of the number 1,388,556?

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 1,388,556, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

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 1,388,556
-1 -1,388,556

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,388,556.

Example:
1 x 1,388,556 = 1,388,556
and
-1 x -1,388,556 = 1,388,556
Notice both answers equal 1,388,556

With that explanation out of the way, let's continue. Next, we take the number 1,388,556 and divide it by 2:

1,388,556 ÷ 2 = 694,278

If the quotient is a whole number, then 2 and 694,278 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 694,278 1,388,556
-1 -2 -694,278 -1,388,556

Now, we try dividing 1,388,556 by 3:

1,388,556 ÷ 3 = 462,852

If the quotient is a whole number, then 3 and 462,852 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 462,852 694,278 1,388,556
-1 -2 -3 -462,852 -694,278 -1,388,556

Let's try dividing by 4:

1,388,556 ÷ 4 = 347,139

If the quotient is a whole number, then 4 and 347,139 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 3 4 347,139 462,852 694,278 1,388,556
-1 -2 -3 -4 -347,139 -462,852 -694,278 1,388,556
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

123469121318232627363943465254697886921081171291381561722072342582762993513874144685165595986217027748288979891,1181,1611,1961,2421,4041,5481,6771,7941,9782,2362,3222,4842,6912,9673,3543,5883,9564,6445,0315,3825,9346,7088,0738,90110,06210,76411,86812,85715,09316,14617,80220,12425,71426,70330,18632,29235,60438,57151,42853,40660,37277,142106,812115,713154,284231,426347,139462,852694,2781,388,556
-1-2-3-4-6-9-12-13-18-23-26-27-36-39-43-46-52-54-69-78-86-92-108-117-129-138-156-172-207-234-258-276-299-351-387-414-468-516-559-598-621-702-774-828-897-989-1,118-1,161-1,196-1,242-1,404-1,548-1,677-1,794-1,978-2,236-2,322-2,484-2,691-2,967-3,354-3,588-3,956-4,644-5,031-5,382-5,934-6,708-8,073-8,901-10,062-10,764-11,868-12,857-15,093-16,146-17,802-20,124-25,714-26,703-30,186-32,292-35,604-38,571-51,428-53,406-60,372-77,142-106,812-115,713-154,284-231,426-347,139-462,852-694,278-1,388,556

More Examples

Here are some more numbers to try:

1,388,5541,388,5551,388,5571,388,558
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