Can you unlock this pattern? n°2.

Algebra Level 3

What is the next number in this sequence?

2 , 5 , 10 , 17 , 28 , 41 , 58 , 77 , 100 2, 5, 10, 17, 28, 41, 58, 77, 100


The answer is 129.

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

9 solutions

Victor Song
May 3, 2014

The difference between each number is a prime number:

Take 5 and 2, the difference is 3

Take 10 and 5, the difference is 5 and so on it goes...

So for each number in the sequence we have to add that number with the next prime number therefore the answer is 129 \boxed{129}

The image on the problem gave it away.

Daniel Liu - 7 years, 1 month ago

Log in to reply

When i did it, i didnt pay attention to the image. i only do it when the picture is somewhat funny. ;)

David Lee - 7 years, 1 month ago

Log in to reply

yes..me too

Max B - 7 years, 1 month ago

didn't pay attention to the image..........

Shaksham Kapoor - 7 years, 1 month ago
Saurabh Mallik
May 8, 2014

We have to add successive prime numbers to every next term.

So, the answer is 129 \boxed{129}

Swapnil Rajawat
May 6, 2014

THE DIFFERENCE B/W TWO CONSECUTIVE NUMBERS IS THAT OF A PRIME NO.

the difference between succesive numbers is a prime.. so the progression goes 2 (+3)= 5 (+5) =10 (+7) =17 (+11) =28 (+13) =41.......100 (+29) = 129

Thaer Fayez
May 5, 2014

Prime numbers

Vishnudatt Gupta
May 4, 2014

The difference between each number is a prime number:

Take 5 and 2, the difference is 3

Take 10 and 5, the difference is 5 and so on it goes...

So for each number in the sequence we have to add that number with the next prime number

therefore the answer is 129 (100+29)

The difference between any two of the terms is a prime number and it’s all the primes in order. 2 is the first prime, and the first number of the sequence. 3 is the second prime and 2+3=5. 5 is the third prime and 5+5=10 And so on. The next term after 100 would have to be the 10th prime number plus 100 (since there are 9 terms before it) or in other words 129.

Edjoy Rodelas
May 5, 2014

at first, i thought the picture doesn't help. i already figured out what is the pattern before i realize that it is a clue :)

Reza Arifandie
May 5, 2014

hail prime numbers...

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...