What are the Factors of 128?
The factors of 128 are 1, 2, 4, 8, 16, 32, 64, 128 (total of 8 factors). Learn whether 128 is prime or composite and see all factor pairs.
Exact Answer
1, 2, 4, 8, 16, 32, 64, 128
Total Factors
8
Number Type
Composite Number
Smallest / Largest
1 and 128
Sum of Factors
255
Step-by-Step Solution: Factors(128) = 1, 2, 4, 8, 16, 32, 64, 128
Step 1
Find All Integers That Divide 128 Evenly
Test integers from 1 up to √128 (11.31). Every divisor with remainder 0 gives a factor pair of 128.
Factors of 128: 1, 2, 4, 8, 16, 32, 64, 128
Summary & Alternative Representations
| Property / Format | Value |
|---|---|
| Total Factors | 8 |
| Number Type | Composite Number |
| Smallest / Largest | 1 and 128 |
| Sum of Factors | 255 |
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Frequently Asked Questions
How many factors does 128 have?
128 has 8 positive factors: 1, 2, 4, 8, 16, 32, 64, 128.
Is 128 a prime number?
No, 128 is a composite number with 8 factors.