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Elenna [48]
3 years ago
10

Find the greatest common factor of 210, 84, and 56

Mathematics
2 answers:
Scilla [17]3 years ago
7 0
Write the prime factors:-

56 =    2*2*2*7
84 =    2*2*3*7
210 =  2*3*5*7

Pick out the numbers common to all three factors; 
They are 2 and 7.

So the GCF = 2*7  = 14 answer
mr Goodwill [35]3 years ago
3 0
To get the Greates Common Factor (GCF) of 84 and 210 we need to factor each value first and then we choose all the copies of factors and multiply them: 

<span><span>84:   223 7</span><span>210:   2 357</span><span>GCF:   2 3 7</span></span>

<span>The Greates Common Factor (GCF) is:   2 x 3 x 7 = 42</span>

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