Mrtnst

Well-known member
Sep 23, 2023
732
1,787
93
What comes next in this series?

1, 2, 6, 12, 60, 420, 840, ?
 
Answer:

2520

Explanation:

This is the series of the smallest numbers evenly divisible by the ascending sequence numbers from 1 to 1..8.

1 is divisible by 1
2 by 1 & 2
6 by 1, 2 & 3 or 1..3
(6 can also be divided by itself, but this isn't relevant because it is not divisible by 4 or 5.)
12 by 1..4
60 by 1..6
420 by 1..7
840 by 1..8

The required number is smallest number that is divisible by 1..9, which is 2520 that is also divisible by 10

2520 by 1..10
 
Last edited:

Join the conversation

News, deals, games, and bargains for Aussies over 60. From everyday expenses like groceries and eating out, to electronics, fashion and travel, the club is all about helping you make your money go further.

Seniors Discount Club

The SDC searches for the best deals, discounts, and bargains for Aussies over 60. From everyday expenses like groceries and eating out, to electronics, fashion and travel, the club is all about helping you make your money go further.
  1. New members
  2. Jokes & fun
  3. Photography
  4. Nostalgia / Yesterday's Australia
  5. Food and Lifestyle
  6. Money Saving Hacks
  7. Offtopic / Everything else

Latest Articles

  • We believe that retirement should be a time to relax and enjoy life, not worry about money. That's why we're here to help our members make the most of their retirement years. If you're over 60 and looking for ways to save money, connect with others, and have a laugh, we’d love to have you aboard.
  • Advertise with us

User Menu

Enjoyed Reading our Story?

  • Share this forum to your loved ones.
Change Weather Postcode×
Change Petrol Postcode×