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Sliva [168]
3 years ago
14

What is the greatest common factor for 21 and 40?

Mathematics
2 answers:
sdas [7]3 years ago
8 0
<span>To get the Greates Common Factor (GCF) of 21 and 40 we need to factor each value first and then we choose all the copies of factors and multiply them: 

<span><span>21:      3 7</span><span>40:   222 5 </span><span>GCF:         </span></span>The Greates Common Factor (GCF) is:   1<span>
</span></span>
AlekseyPX3 years ago
4 0
<span>The only common factor is 1. So that's the greatest. </span>
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