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The word factor means you take a number [in this case it is 2] and you multiply it by another number to reach your desired numbers [in this case your desired numbers are 1, 2, 4, 8 and 16]

So ask yourself 2 times what numbers equals 1 or 2 or 4 or 8 or 16

2x 0.5 = 1

2x 1 = 2

2x 2 = 4

2x 4 = 8

2x 8 = 16

Because a number can be multiplied by 2 and get the numbers you said then this 2 can be called a factor of these numbers.

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14y ago

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