Binary Formulas Quick Reference

A Binary formula quick reference can help in many cases, especially when we are dealing with IP addresses for first time. The more and more you use them the need to look into the table will become less and less.

Useful Formulas

2^a * 2^b = 2^a+b. For example 2² * 2⁸ = 2^10.

2^a + 2^a = 2 * 2^a = 2^1+a. For example 2¹¹ + 2¹¹ = 2^12.

2^a + 2^a + 2^a + 2^a  = 4 * 2^a  = 2² * 2^a = 2^2+a. For example 2¹⁰ + 2¹⁰  + 2¹⁰ + 2¹⁰ = 2^12.