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19 September, 11:34

Is 3 a common factor of 42 and 84

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  1. 19 September, 14:11
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    Answer: Yes, 3 is a common factor of 42 and 84.

    We can see this by noticing that

    42 = 3*14

    84 = 3*28

    Also we could use the divisibility by 3 rule which says to add up the digits of the values. So 42 would have 4+2 = 6 which is a multiple of 3. Similarly, 84 has us add 8+4 = 12 which is also a multiple of 3.

    Side note: 3 is not the greatest common factor as that would be 42.
  2. 19 September, 14:24
    0
    Answer: Уеζф

    Step-by-step explanation:ЫЭТЗЯоеЬЭРУ
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