The smallest value of n, for which 2n+1 is not a prime number, is
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1
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(1000)^9 / 10^24 =
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2
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{(476 + 424)^2 - 4 X 476 X 424}
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3
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A number is divided by 221, the remainder is 64. If the number be divided by 13 then the remainder will be
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If (64)2 - (36)2 = 20 x a, then a = ?
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5
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The smallest 3 digit prime number is:
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6
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The difference between the local value and the face value of 7 in the numeral 32675149 is
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7
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476 ** 0 is divisible by both 3 and 11.The non zero digits in the hundred's and ten's places are respectively:
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8
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(12)3 x 64 ÷ 432 = ?
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9
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Find the sum to 200 terms of the series 1 + 4 + 6 + 5 + 11 + 6 + ....
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10
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The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?
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