The smallest value of n, for which 2n+1 is not a prime number, is
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What is the unit digit { (6374)^1793 X (625)^317 X (341)^491 }
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What least number must be added to 1056, so that the sum is completely divisible by 23 ?
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3
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If x is a whole number, then x²(x²  1) is always divisible by
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What is the unit digit in {(6374)^{1793} x (625)^{317} x (341^{491})}?
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Find the last unit digit of 55^5 ( Using Euler Theorem)
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If the number 653ab is divisible by 90, then (a + b) = ?
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(1000)^9 / 10^24 =
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It is being given that (2^{32} + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?
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217 X 217 + 183 X 183
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106 X 106  94 X 94
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