Question
Find Greatest Common Divisor of 168, 714, 30 and 858, by listing out the factors.
Answer
The GCD of given numbers is 6.
Explanation
| factors of 168 are : | 1 , 2 , 3 , 4 , 6 , 7 , 8 , 12 , 14 , 21 , 24 , 28 , 42 , 56 , 84 , 168 |
| factors of 714 are : | 1 , 2 , 3 , 6 , 7 , 14 , 17 , 21 , 34 , 42 , 51 , 102 , 119 , 238 , 357 , 714 |
| factors of 30 are : | 1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 |
| factors of 858 are : | 1 , 2 , 3 , 6 , 11 , 13 , 22 , 26 , 33 , 39 , 66 , 78 , 143 , 286 , 429 , 858 |
We see that the Greatest Common Factor = 6.
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