How about: 8*81 = 648 or 2*324 = 648 out of many possibilities
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The prime factorization is 2 2 2 3 3 3 3. So if you multiply those numbers, you will get 648. One example is 2*324.
(324,2)(216,3)(162,4)(108,6)(81,8)(72,9)(54,12)(36,18)(27,24)
72 times 9 is equal to 648. This is calculated by multiplying 72 by 9, which represents adding 72 together 9 times. To find the product, you can use the multiplication algorithm, where you multiply the units digit (2) of 72 by 9 to get 18, then carry over the tens digit (7) to get 63. Therefore, 72 times 9 equals 648.
This way!648
The LCM is 648.