Which of the following numbers will completely divide (4915 - 1) ?
$x$ n - 1 will be divisibly by $ x $ + 1 only when $ n $ is even.
(4915 - 1) = {(72)15 - 1} = (730 - 1), which is divisible by (7 +1), i.e., 8.
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9+$\dfrac{3}{4}$+7+$\dfrac{2}{17}$-$\left(9+\dfrac{1}{15}\right)$=? |
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How many prime numbers are less than 50 ? |
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$\left(800 ÷ 64\right)$ x $\left(1296 ÷36\right)$ = ? |
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Which natural number is nearest to 8485, which is completely divisible by 75 ? |
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Which of the following numbers is divisible by each one of 3, 7, 9 and 11 ? |
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Which natural number is nearest to 9217, which is completely divisible by 88 ? |
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4300731 - ? = 2535618 |
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$\dfrac{\left(489 + 375\right)^2-\left(489 - 375\right)^2}{\left(489 \times 375\right)}$=? |
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397 x 397 + 104 x 104 + 2 x 397 x 104 = ? |
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$\left(35423 + 7164 + 41720\right)$ - $\left(317 \times 89\right)$ = ? |
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