When every even power of every odd integer (greater than 1) is divided by 8, what is the remainder ?  

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CDS Elementary Mathematics 16 April 2023 Official Paper
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  1. 3
  2. 2
  3. 1
  4. The remainder is not necessarily 1. 

Answer (Detailed Solution Below)

Option 3 : 1
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Detailed Solution

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Concept:

Even Number: Any number that can be exactly divided by 2 is called an even number. Even numbers always end up with the last digit as 0, 2, 4, 6, or 8. 

Calculation:

Let's assume the odd number = 7

Even power of 7 = 72 = 49

49 = 8 × 6 + 1

Similarly, we can also check for another value.

∴ The correct answer is 1. 

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