GCF for 204 and 340
"Greatest Common Factor" Calculator
What is the Greatest common Divisor of 204 and 340?
Answer: GCF of 204 and 340 is 68
(Sixty-eight)
Finding GCF for 204 and 340 using all factors (divisors) listing
The first method to find GCF for numbers 204 and 340 is to list all factors for both numbers and pick the highest common one:
All factors of 204: 1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204
All factors of 340: 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340
So the Greatest Common Factor for 204 and 340 is 68
Finding GCF for 204 and 340 by Prime Factorization
The second method to find GCF for numbers 204 and 340 is to list all Prime Factors for both numbers and multiply the common ones:
All Prime Factors of 204: 2, 2, 3, 17
All Prime Factors of 340: 2, 2, 5, 17
As we can see there are Prime Factors common to both numbers: 2, 2, 17
Now we need to multiply them to find GCF: 2 × 2 × 17 = 68
Related Calculations
See Also
- Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers
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GCF Table
| Number 1 | Number 2 | GCF |
|---|---|---|
| 189 | 340 | 1 |
| 190 | 340 | 10 |
| 191 | 340 | 1 |
| 192 | 340 | 4 |
| 193 | 340 | 1 |
| 194 | 340 | 2 |
| 195 | 340 | 5 |
| 196 | 340 | 4 |
| 197 | 340 | 1 |
| 198 | 340 | 2 |
| 199 | 340 | 1 |
| 200 | 340 | 20 |
| 201 | 340 | 1 |
| 202 | 340 | 2 |
| 203 | 340 | 1 |
| 204 | 340 | 68 |
| 205 | 340 | 5 |
| 206 | 340 | 2 |
| 207 | 340 | 1 |
| 208 | 340 | 4 |
| 209 | 340 | 1 |
| 210 | 340 | 10 |
| 211 | 340 | 1 |
| 212 | 340 | 4 |
| 213 | 340 | 1 |
| 214 | 340 | 2 |
| 215 | 340 | 5 |
| 216 | 340 | 4 |
| 217 | 340 | 1 |
| 218 | 340 | 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 204 and 340? (The answer is: 68). Select the first number (e.g. '204') and the second number (e.g. '340'). 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