Q: What are the factor combinations of the number 162,421,560?

 A:
Positive:   1 x 1624215602 x 812107803 x 541405204 x 406053905 x 324843126 x 270702607 x 232030808 x 203026959 x 1804684010 x 1624215612 x 1353513014 x 1160154015 x 1082810418 x 902342020 x 812107821 x 773436024 x 676756528 x 580077030 x 541405235 x 464061636 x 451171040 x 406053942 x 386718045 x 360936856 x 290038560 x 270702663 x 257812070 x 232030872 x 225585584 x 193359090 x 1804684105 x 1546872120 x 1353513126 x 1289060140 x 1160154168 x 966795180 x 902342210 x 773436252 x 644530280 x 580077315 x 515624360 x 451171420 x 386718504 x 322265630 x 257812840 x 1933591260 x 1289062520 x 64453
Negative: -1 x -162421560-2 x -81210780-3 x -54140520-4 x -40605390-5 x -32484312-6 x -27070260-7 x -23203080-8 x -20302695-9 x -18046840-10 x -16242156-12 x -13535130-14 x -11601540-15 x -10828104-18 x -9023420-20 x -8121078-21 x -7734360-24 x -6767565-28 x -5800770-30 x -5414052-35 x -4640616-36 x -4511710-40 x -4060539-42 x -3867180-45 x -3609368-56 x -2900385-60 x -2707026-63 x -2578120-70 x -2320308-72 x -2255855-84 x -1933590-90 x -1804684-105 x -1546872-120 x -1353513-126 x -1289060-140 x -1160154-168 x -966795-180 x -902342-210 x -773436-252 x -644530-280 x -580077-315 x -515624-360 x -451171-420 x -386718-504 x -322265-630 x -257812-840 x -193359-1260 x -128906-2520 x -64453


How do I find the factor combinations of the number 162,421,560?

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 162,421,560, 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.

1 162,421,560
-1 -162,421,560

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 162,421,560.

Example:
1 x 162,421,560 = 162,421,560
and
-1 x -162,421,560 = 162,421,560
Notice both answers equal 162,421,560

With that explanation out of the way, let's continue. Next, we take the number 162,421,560 and divide it by 2:

162,421,560 ÷ 2 = 81,210,780

If the quotient is a whole number, then 2 and 81,210,780 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 81,210,780 162,421,560
-1 -2 -81,210,780 -162,421,560

Now, we try dividing 162,421,560 by 3:

162,421,560 ÷ 3 = 54,140,520

If the quotient is a whole number, then 3 and 54,140,520 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 54,140,520 81,210,780 162,421,560
-1 -2 -3 -54,140,520 -81,210,780 -162,421,560

Let's try dividing by 4:

162,421,560 ÷ 4 = 40,605,390

If the quotient is a whole number, then 4 and 40,605,390 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 40,605,390 54,140,520 81,210,780 162,421,560
-1 -2 -3 -4 -40,605,390 -54,140,520 -81,210,780 162,421,560
Keep dividing by the next highest number until you cannot divide anymore.

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

123456789101214151820212428303536404245566063707284901051201261401681802102522803153604205046308401,2602,52064,453128,906193,359257,812322,265386,718451,171515,624580,077644,530773,436902,342966,7951,160,1541,289,0601,353,5131,546,8721,804,6841,933,5902,255,8552,320,3082,578,1202,707,0262,900,3853,609,3683,867,1804,060,5394,511,7104,640,6165,414,0525,800,7706,767,5657,734,3608,121,0789,023,42010,828,10411,601,54013,535,13016,242,15618,046,84020,302,69523,203,08027,070,26032,484,31240,605,39054,140,52081,210,780162,421,560
-1-2-3-4-5-6-7-8-9-10-12-14-15-18-20-21-24-28-30-35-36-40-42-45-56-60-63-70-72-84-90-105-120-126-140-168-180-210-252-280-315-360-420-504-630-840-1,260-2,520-64,453-128,906-193,359-257,812-322,265-386,718-451,171-515,624-580,077-644,530-773,436-902,342-966,795-1,160,154-1,289,060-1,353,513-1,546,872-1,804,684-1,933,590-2,255,855-2,320,308-2,578,120-2,707,026-2,900,385-3,609,368-3,867,180-4,060,539-4,511,710-4,640,616-5,414,052-5,800,770-6,767,565-7,734,360-8,121,078-9,023,420-10,828,104-11,601,540-13,535,130-16,242,156-18,046,840-20,302,695-23,203,080-27,070,260-32,484,312-40,605,390-54,140,520-81,210,780-162,421,560

More Examples

Here are some more numbers to try:

162,421,558162,421,559162,421,561162,421,562
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