What is the next number in the series: $1, 12, 123, 1234, ?$

  • A
    $123$
  • B
    $12346$
  • C
    $12345$
  • D
    $1235$

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Similar Questions

$1, 7, 49, 343, (?)$

In the following number series, a wrong number is given. Find out that wrong number.
$11, 18, 29, 42, 59, 80, 101$

Find the next number in the series: $121, 144, 289, 324, 529, 576, ...$

$1, 3, 4, 8, 15, 27, ?$

$41 \quad 164 \quad 2624 \quad ? \quad 6045696$

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