What is longmult 64*64 ?

The solution to longmult 64*64 is 4096

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Popular >

longmult 64*64

Solution

long multiplication

64 \cdot 64

Solution

4096

Solution steps

64 \cdot 64

Line up the numbers

\times 6644

Multiply the top number by the bottom number one digit at a time starting with the ones digit (from right to left)

Multiply the top number by the bolded digit of the bottom number

\times 6644

Mutliply the bold numbers:

4 \cdot 4 = 16

Carry

1

to the column on the left and write

6

in the result line

\frac{\times 1 6 6 4 4}{6}

Add the carried number to the multiplication:

1 + 6 \cdot 4 = 25

Carry

2

to the column on the left and write

5

in the result line

\frac{\times 2 1 6 6 4 4}{5 6}

Add the carried digit,

2

, to the result

\frac{\times 2 1 6 6 4 4}{2 5 6}

Multiply the top number by the bolded digit of the bottom number

\frac{\times 6 6 4 4}{2 5 6}

Mutliply the bold numbers:

4 \cdot 6 = 24

Carry

2

to the column on the left and write

4

in the result line

\frac{\times 2 6 6 4 4}{2 5 4 6}

Add the carried number to the multiplication:

2 + 6 \cdot 6 = 38

Carry

3

to the column on the left and write

8

in the result line

\frac{\times 3 2 6 6 4 4}{2 8 5 4 6}

Add the carried digit,

3

, to the result

\frac{\times 3 2 6 6 4 4}{3 2 8 5 4 6}

Add the rows to get the answer. For simplicity, fill in trailing zeros

\frac{\times 6 6 4 4}{0 3 2 8 5 4 6 0}

256 + 3840 = 4096

+ 03285460

Add the digits of the bolded column:

6 + 0 = 6

\frac{+ 0 3 2 8 5 4 6 0}{+ 6}

Add the digits of the bolded column:

5 + 4 = 9

\frac{+ 0 3 2 8 5 4 6 0}{+ 9 6}

Add the digits of the bolded column:

2 + 8 = 10

\frac{+ 0 3 2 8 5 4 6 0}{+ 9 6}

Carry

1

to the column on the left and write

0

in the bolded column

\frac{+ 1 0 3 2 8 5 4 6 0}{+ 0 9 6}

Add the digits of the bolded column:

1 + 0 + 3 = 4

\frac{+ 1 0 3 2 8 5 4 6 0}{+ 4 0 9 6}

= 4096

= 4096

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Frequently Asked Questions (FAQ)

What is longmult 64*64 ?
The solution to longmult 64*64 is 4096