# C Programming - Bitwise Operators - Discussion

Discussion Forum : Bitwise Operators - Yes / No Questions (Q.No. 4)

4.

Bitwise | can be used to multiply a number by powers of 2.

Discussion:

4 comments Page 1 of 1.
Raushan said:
1 decade ago

For power operation, multiplication is done repeatedly the same number of time as is the number. Direct bitwise operation for power is not available.

Ranjit said:
1 decade ago

Multiplying by a power of 2 is the same as shifting to the left. If you shift it left by 3 places you multiply it by 2^3=8. Similarly shifting to the right is division by powers of 2.

Abhayraj SN said:
8 years ago

<< (LEFT SHIFT) multiplies by 2.

>> (RIGHT SHIFT) divides by 2.

Correct me if it's wrong!

>> (RIGHT SHIFT) divides by 2.

Correct me if it's wrong!

Ionut said:
8 years ago

<< (LEFT SHIFT n positions) multiplies by 2^n.

>> (RIGHT SHIFT n positions) divides by 2^n.

>> (RIGHT SHIFT n positions) divides by 2^n.

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