# What is the memory space required if two unsigned 8 bit numbers are multiplied ?

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#### ramesh

• Aug 19th, 2005

8 bits

#### Neha Sinha

• Oct 31st, 2005

16 bit memory is required

#### pvp

• Dec 25th, 2005

ans is 16 bitsEx: two unsigned 2 bit numbers multiplication11 x 11 = 1001 - 4 bitssimilarly 8 bits * 8bits = 16 bits

#### raj

• Feb 28th, 2006

u have estimated wrong answer.i m sure that mare than 8 bit memory space is required.would u plz.. explain your answer

#### Ramachandran P.R

• Apr 30th, 2006

it requires 16 bit memory for ex:max 8 bit value is FFso FF*FF=16 bit value

#### ved

• Jun 8th, 2006

look....8 bit means at max 255, so if u multiply 255*255 the ans is 65025. Now 2^16 is 65536 that means we would require atleast 16 bits to represent 65025 anything less than that will not be sufficient as 2^15=32768 which is less than 65025.

#### san

• Nov 3rd, 2006

it requires 10bits,since 99*99 is 9801 and 2^10 is 1024

#### sumanyaram Profile Answers by sumanyaram

• Dec 4th, 2006

requires 16 bits , but we need 16 only when 2 input's are max(2^8-1),since nothing has been specified we need 16 bits

#### malroqi Profile Answers by malroqi

• Sep 3rd, 2010

16 bit

#### karam_sodhi@yahoo.com

• Sep 11th, 2011

-128 to +127

#### raval vikram

• Sep 16th, 2011

16 bit