### Discussion :: Odd Man Out and Series - Find Wrong No. (Q.No.2)

Find out the wrong number in the series.

2. | 1, 1, 2, 6, 24, 96, 720 |
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Answer: Option B Explanation: Go on multiplying with 1, 2, 3, 4, 5, 6 to get next number. So, 96 is wrong. |

Santhosh said: (Aug 13, 2011) | |

I could not understand this problem, can you explain clearly please? |

Cemi said: (Aug 30, 2011) | |

I also could not understand this. |

Menaga said: (Sep 26, 2011) | |

Go on multiflying with 1,2,3,4,5,6.... 1*1=1 1*2=2 2*3=6 6*4=24 24*5=120 120*6=720 The correct answer is 120. So 96 is the wrong number in the given series. |

Pavan said: (Sep 22, 2013) | |

Series can be written as 1, 1!, 2!, 3!, 4!, 5!, 6! = 1, 1, 2, 6, 24, 120, 720. So odd number is 96 in given series. |

Sweta said: (Oct 2, 2013) | |

1*1=1 1*2=2 2*3=6 6*4=24 24*5=120 120*6=720 So, 96 is not correct. |

Athira said: (Jul 9, 2015) | |

Thanks for your clarification. |

Karthik said: (Jun 23, 2016) | |

Factorials: i.e o!, 1!, 2!, 3!, .... |

Mounika said: (Dec 20, 2016) | |

Thanks for your wonderful explanation @Menaga. |

Sakshi Deo said: (Jan 22, 2018) | |

I didn't understand the significance of 1 two times in the series! Any justification? |

Galactic said: (Feb 20, 2018) | |

Correct series is 0! 1! 2! 3! 4! 5! 6!. 5! is 120 not 96. |

Fazeena said: (May 25, 2018) | |

Thanks for the given explanation. Thank you all. |

Rm Mukesh said: (Mar 27, 2020) | |

The pattern is *1, *2, *3, *4. So, the missing term = 24x5 = 120. |

Arnav said: (Jan 7, 2022) | |

Thank you, this is very helpful for me. |

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