GCF for 32 and 128
"Greatest Common Factor" Calculator
What is the Greatest common Divisor of 32 and 128?
Answer: GCF of 32 and 128 is 32
(Thirty-two)
Finding GCF for 32 and 128 using all factors (divisors) listing
The first method to find GCF for numbers 32 and 128 is to list all factors for both numbers and pick the highest common one:
All factors of 32: 1, 2, 4, 8, 16, 32
All factors of 128: 1, 2, 4, 8, 16, 32, 64, 128
So the Greatest Common Factor for 32 and 128 is 32
Finding GCF for 32 and 128 by Prime Factorization
The second method to find GCF for numbers 32 and 128 is to list all Prime Factors for both numbers and multiply the common ones:
All Prime Factors of 32: 2, 2, 2, 2, 2
All Prime Factors of 128: 2, 2, 2, 2, 2, 2, 2
As we can see there are Prime Factors common to both numbers: 2, 2, 2, 2, 2
Now we need to multiply them to find GCF: 2 × 2 × 2 × 2 × 2 = 32
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GCF Table
| Number 1 | Number 2 | GCF |
|---|---|---|
| 17 | 128 | 1 |
| 18 | 128 | 2 |
| 19 | 128 | 1 |
| 20 | 128 | 4 |
| 21 | 128 | 1 |
| 22 | 128 | 2 |
| 23 | 128 | 1 |
| 24 | 128 | 8 |
| 25 | 128 | 1 |
| 26 | 128 | 2 |
| 27 | 128 | 1 |
| 28 | 128 | 4 |
| 29 | 128 | 1 |
| 30 | 128 | 2 |
| 31 | 128 | 1 |
| 32 | 128 | 32 |
| 33 | 128 | 1 |
| 34 | 128 | 2 |
| 35 | 128 | 1 |
| 36 | 128 | 4 |
| 37 | 128 | 1 |
| 38 | 128 | 2 |
| 39 | 128 | 1 |
| 40 | 128 | 8 |
| 41 | 128 | 1 |
| 42 | 128 | 2 |
| 43 | 128 | 1 |
| 44 | 128 | 4 |
| 45 | 128 | 1 |
| 46 | 128 | 2 |
About "Greatest Common Factor" Calculator
This calculator will help you find the greatest common factor (GCF) of two numbers. For example, it can help you find out what is the Greatest common Divisor of 32 and 128? (The answer is: 32). Select the first number (e.g. '32') and the second number (e.g. '128'). After that hit the 'Calculate' button.
Greatest Common Factor (GCF) also known as the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) - it is the largest positive integer that divides each of the integers with zero remainder