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18 votes
18 votes
What prime factor is common to 35, 84 and 21?​

User Chronicle
by
2.4k points

2 Answers

26 votes
26 votes
Answer: 7

35/7=5
84/7=12
21/7=3

5, 12, and 3 don’t have any common factors so 7 is the prime factor.
User Gustavo Mora
by
2.8k points
10 votes
10 votes

Answer:

7 is the prime factor that is common to all three numbers.

7x5 = 35

7x12 = 84

7x3 = 21

Let me know if this helps!

User Saharsh Shah
by
3.2k points
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