The smallest value of n, for which 2n+1 is not a prime number, is
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A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 98 are wrong and the other digits are correct , then the correct answer would be :
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What will be remainder when (6767 + 67) is divided by 68 ?
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How many prime numbers exist in 67 x 353 x 1110?
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4
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What is the unit digit in (4137) ⁷⁵⁴?
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5
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If p and q are the two digits of the number 653pq such that this number is divisible by 80, then p+q is equal to :
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6
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The smallest 3 digit prime number is:
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P is a whole number which when divided by 4 gives 3 as remainder. What will be the remainder when 2P is divided by 4?
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It is being given that (232 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?
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9
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35 + 15 X 1.5
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10
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(1000)^9 / 10^24 =
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