2 Answers

Bronanaza · Answer 1 · 2017-11-22T02:11:23+0000

16 has the factors 1,2,4,8,16 and 21 has the factors 1,3,7,21

compare which numbers from 16 and 21 are similar and the greatest value... in this case 1

So, the greatest common factor of 16 and 21 in 1

Orlenko · Answer 2 · 2017-11-23T09:23:38+0000

The factors of 16 are 1, 2, 4, 8, and 16 .

The factors of 21 are 1, 3, 7, and 21 .

The common factors of 16 and 21 are 1 .

The greatest common factor of 16 and 21 is 1 .

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