Brain Teasers
2520, 1260, 840, 630, 504, 420, 360, 315, ?, ?
Find the next two numbers in this series:
2520, 1260, 840, 630, 504, 420, 360, 315, ?, ?
2520, 1260, 840, 630, 504, 420, 360, 315, ?, ?
Hint
If there's an eleventh term, it isn't an integer.Answer
280, 252.The pattern is 2520 divide by the position of the number: 2520/1=2520, 2520/2=1260, 2520/3=840, and so on.
Hide Hint Show Hint Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
lol...I got the answer easy... but I got it based on a different trend. Say that you have i going from 1... and j going from i+1... . Then starting from the first term you multiply the term by i/j to get the second term. That is 2520 x 1/2 to get 1260. And then 1260 x 2/3 to get 840 and 840 x 3/4 to get 630 and so on and so on ...
I got the answer the same way as merc... which of course makes perfect sense, because when multiplying the previous number by the numerator you get you original number, and then the denominator is the integer in the initial calculation.
Blagh like math. Math good.
Blagh like math. Math good.
MATH IS EASY!
Too simple.
very nice!!
To post a comment, please create an account and sign in.
Follow Braingle!