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This is only one of the two possible answer.If we look at it in terms of powers of 2, then 20 should be left out as 4, 8, 16 are all powers of 2.
That's a good one.
For that matter, 20 is the odd one out, since it is the only number which is the product of more than 1 prime number.
2=2¹4=2²8=2³16=2&sup420 cannot be expressed in index form with base 2
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4 comments:
This is only one of the two possible answer.
If we look at it in terms of powers of 2, then 20 should be left out as 4, 8, 16 are all powers of 2.
That's a good one.
For that matter, 20 is the odd one out, since it is the only number which is the product of more than 1 prime number.
2=2¹
4=2²
8=2³
16=2&sup4
20 cannot be expressed in index form with base 2
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