I'm sensing an obvious pattern

Logic Level 2

$\large 77, 49, 36, 18, ?$

What is the next possible number in this integer sequence?

The answer is 8.

3 solutions

Ishaan Panda
Jun 16, 2015

This solution is simple The pattern is 77,49,36,18,__ now its clear that 7.7=49 4.9=36 3.6=18 1.8=8 so the answer is 8.

Rama Devi
Jun 15, 2015

The next term in the sequence is 8.

This is because , the next number is obtained by the product of the digits of the previous number.

Please up vote if you like it .

Moderator note:

Right. Can there be a number before $77$ ? Why or why not?

Reply to challenge master -

No , Since a sequence should be followed so according to the sequence the number before 77 should be a number whose digits when multiplied gives 77 i.e 11x7 so the number should be 117 or 171 or 711 but here the multiplication will not be unique since there are three numbers. So a number can be before only when it follows the sequence as well as have a unique multiplication @ChallengeMaster

sandeep Rathod - 5 years, 12 months ago

you are exactly right pal

Ishaan Panda - 5 years, 12 months ago

no this is not possible as 77 only has factors 1,7,11,77 So by any type of multiplication is not possible to obtain 77

Ishaan Panda - 5 years, 12 months ago

What do you mean?

Rama Devi - 5 years, 12 months ago

The sequence starts with 77 and the question asks for finding the next term and not about the previous.

Rama Devi - 5 years, 12 months ago

Good solutions are always up voted.

Sai Ram - 5 years, 12 months ago

Chitty Gadiparthi
Aug 10, 2015

Multiply the two digits of the first digit to get the second number. Multiply the two digits to get the third number, and so on. So, you have to multiply the digits of the fourth number to get the fifth number. 1 x 8 = 8. 8 is the fifth number.

I'm sensing an obvious pattern

The answer is 8.

3 solutions

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