The common factor of 8 and 5

Two mutually prime numbers, the common factor is only 1

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1. What is the greatest common factor of 18 and 12______ The least common multiple of 6 and 12 is______ ．
2. The greatest common factor and the least common factor of 8 and 12
3. The common factors of 20 and 15 are () and the greatest common factor is (). The common factors of 8 and 12 are () and the greatest common factor is () emergency
4. The factor of 16 is______ ; & nbsp; what is the greatest common factor of 10 and 15______ The least common multiple of them is______ ．
5. The greatest common factor of 10 and 35 is () A. 1B. 5C. 10D. 35
6. What is the greatest common factor of 10 and 11 What about 12 and 18? What about 15 and 25? What about 51 and 3? What about 3 and 7? What about 4 and 10?
7. The greatest common factor of 10 and 14
8. The common factor of 21 and 49
9. If the most common factor of A. B is 14, how many common factors of a and B?
10. Common factor of 14 and 49 1. A total of 32 dragon boat teams participated in this year's Dragon Boat Race, and finally 6 teams entered the finals. What percentage of all teams entered the finals? 2. Who is bigger, four fifths minus two fifths or nine tenths minus seven tenths? 3. Divide the 4 meter long rope into 11 sections, two of which are () meters long A. 8 out of 11 b, 2 out of 11 C, 4 out of 11 C 4. 5 / 8 + 0.375 =?
11. What is the quotient of the greatest common factor of 48 and 60 divided by the least common multiple
12. Find the greatest common factor and least common multiple of 48 and 60
13. Find the greatest common factor and least common multiple of 48 and 60
14. What is the greatest common factor and the least common multiple of 12, 16 and 60
15. The greatest common factor and the least common multiple of 2 and 17 Between 13:00 and 14:00 today,
16. What is the greatest common factor of 34 and 17
17. 17 and 19, 72 and 24
18. 17 and 19, and 72 and 24
19. The least common multiple and greatest common factor of the following questions: (30 and 45) (5 and 9) (34 and 17) (18 and 72) (15 and 16)
20. How to find the least common multiple of three numbers by short division? There are: 18 24 42 25 20 8 12 15