128 times 8 equals 1,024. To calculate this, you can multiply 128 by 8 using the standard multiplication method, where you multiply the units digit first, then the tens digit, and so on. This results in 8 times 8 equals 64, and 8 times 120 equals 960. Adding these two products together gives you the final answer of 1,024.
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1024
This is a power of two: 2^10 = 1024.
Knowing that 8 = 2 * 2 * 2, it is easy to multiply by 8 by simply doubling your number three times (e.g. 128 -> 256 -> 512 -> 1024).