Question
Find Greatest Common Divisor of 840, 500, 310 and 1000, by listing out the factors.
Answer
The GCD of given numbers is 10.
Explanation
| factors of 840 are : | 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 10 , 12 , 14 , 15 , 20 , 21 , 24 , 28 , 30 , 35 , 40 , 42 , 56 , 60 , 70 , 84 , 105 , 120 , 140 , 168 , 210 , 280 , 420 , 840 |
| factors of 500 are : | 1 , 2 , 4 , 5 , 10 , 20 , 25 , 50 , 100 , 125 , 250 , 500 |
| factors of 310 are : | 1 , 2 , 5 , 10 , 31 , 62 , 155 , 310 |
| factors of 1000 are : | 1 , 2 , 4 , 5 , 8 , 10 , 20 , 25 , 40 , 50 , 100 , 125 , 200 , 250 , 500 , 1000 |
We see that the Greatest Common Factor = 10.
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