GCF for 140 and 224
"Greatest Common Factor" Calculator
What is the Greatest common Divisor of 140 and 224?
Answer: GCF of 140 and 224 is 28
(Twenty-eight)
Finding GCF for 140 and 224 using all factors (divisors) listing
The first method to find GCF for numbers 140 and 224 is to list all factors for both numbers and pick the highest common one:
All factors of 140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
All factors of 224: 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224
So the Greatest Common Factor for 140 and 224 is 28
Finding GCF for 140 and 224 by Prime Factorization
The second method to find GCF for numbers 140 and 224 is to list all Prime Factors for both numbers and multiply the common ones:
All Prime Factors of 140: 2, 2, 5, 7
All Prime Factors of 224: 2, 2, 2, 2, 2, 7
As we can see there are Prime Factors common to both numbers: 2, 2, 7
Now we need to multiply them to find GCF: 2 × 2 × 7 = 28
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GCF Table
| Number 1 | Number 2 | GCF |
|---|---|---|
| 125 | 224 | 1 |
| 126 | 224 | 14 |
| 127 | 224 | 1 |
| 128 | 224 | 32 |
| 129 | 224 | 1 |
| 130 | 224 | 2 |
| 131 | 224 | 1 |
| 132 | 224 | 4 |
| 133 | 224 | 7 |
| 134 | 224 | 2 |
| 135 | 224 | 1 |
| 136 | 224 | 8 |
| 137 | 224 | 1 |
| 138 | 224 | 2 |
| 139 | 224 | 1 |
| 140 | 224 | 28 |
| 141 | 224 | 1 |
| 142 | 224 | 2 |
| 143 | 224 | 1 |
| 144 | 224 | 16 |
| 145 | 224 | 1 |
| 146 | 224 | 2 |
| 147 | 224 | 7 |
| 148 | 224 | 4 |
| 149 | 224 | 1 |
| 150 | 224 | 2 |
| 151 | 224 | 1 |
| 152 | 224 | 8 |
| 153 | 224 | 1 |
| 154 | 224 | 14 |
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 140 and 224? (The answer is: 28). Select the first number (e.g. '140') and the second number (e.g. '224'). 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