Q: What are the factor combinations of the number 320,443,440?

 A:
Positive:   1 x 3204434402 x 1602217203 x 1068144804 x 801108605 x 640886886 x 534072408 x 4005543010 x 3204434412 x 2670362015 x 2136289616 x 2002771520 x 1602217224 x 1335181030 x 1068144840 x 801108648 x 667590560 x 534072480 x 4005543120 x 2670362240 x 13351811069 x 2997601249 x 2565602138 x 1498802498 x 1282803207 x 999203747 x 855204276 x 749404996 x 641405345 x 599526245 x 513126414 x 499607494 x 427608552 x 374709992 x 3207010690 x 2997612490 x 2565612828 x 2498014988 x 2138016035 x 1998417104 x 18735
Negative: -1 x -320443440-2 x -160221720-3 x -106814480-4 x -80110860-5 x -64088688-6 x -53407240-8 x -40055430-10 x -32044344-12 x -26703620-15 x -21362896-16 x -20027715-20 x -16022172-24 x -13351810-30 x -10681448-40 x -8011086-48 x -6675905-60 x -5340724-80 x -4005543-120 x -2670362-240 x -1335181-1069 x -299760-1249 x -256560-2138 x -149880-2498 x -128280-3207 x -99920-3747 x -85520-4276 x -74940-4996 x -64140-5345 x -59952-6245 x -51312-6414 x -49960-7494 x -42760-8552 x -37470-9992 x -32070-10690 x -29976-12490 x -25656-12828 x -24980-14988 x -21380-16035 x -19984-17104 x -18735


How do I find the factor combinations of the number 320,443,440?

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 320,443,440, 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.

1 320,443,440
-1 -320,443,440

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 320,443,440.

Example:
1 x 320,443,440 = 320,443,440
and
-1 x -320,443,440 = 320,443,440
Notice both answers equal 320,443,440

With that explanation out of the way, let's continue. Next, we take the number 320,443,440 and divide it by 2:

320,443,440 ÷ 2 = 160,221,720

If the quotient is a whole number, then 2 and 160,221,720 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 2 160,221,720 320,443,440
-1 -2 -160,221,720 -320,443,440

Now, we try dividing 320,443,440 by 3:

320,443,440 ÷ 3 = 106,814,480

If the quotient is a whole number, then 3 and 106,814,480 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 3 106,814,480 160,221,720 320,443,440
-1 -2 -3 -106,814,480 -160,221,720 -320,443,440

Let's try dividing by 4:

320,443,440 ÷ 4 = 80,110,860

If the quotient is a whole number, then 4 and 80,110,860 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 80,110,860 106,814,480 160,221,720 320,443,440
-1 -2 -3 -4 -80,110,860 -106,814,480 -160,221,720 320,443,440
Keep dividing by the next highest number until you cannot divide anymore.

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

123456810121516202430404860801202401,0691,2492,1382,4983,2073,7474,2764,9965,3456,2456,4147,4948,5529,99210,69012,49012,82814,98816,03517,10418,73519,98421,38024,98025,65629,97632,07037,47042,76049,96051,31259,95264,14074,94085,52099,920128,280149,880256,560299,7601,335,1812,670,3624,005,5435,340,7246,675,9058,011,08610,681,44813,351,81016,022,17220,027,71521,362,89626,703,62032,044,34440,055,43053,407,24064,088,68880,110,860106,814,480160,221,720320,443,440
-1-2-3-4-5-6-8-10-12-15-16-20-24-30-40-48-60-80-120-240-1,069-1,249-2,138-2,498-3,207-3,747-4,276-4,996-5,345-6,245-6,414-7,494-8,552-9,992-10,690-12,490-12,828-14,988-16,035-17,104-18,735-19,984-21,380-24,980-25,656-29,976-32,070-37,470-42,760-49,960-51,312-59,952-64,140-74,940-85,520-99,920-128,280-149,880-256,560-299,760-1,335,181-2,670,362-4,005,543-5,340,724-6,675,905-8,011,086-10,681,448-13,351,810-16,022,172-20,027,715-21,362,896-26,703,620-32,044,344-40,055,430-53,407,240-64,088,688-80,110,860-106,814,480-160,221,720-320,443,440

More Examples

Here are some more numbers to try:

320,443,438320,443,439320,443,441320,443,442
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