The greatest common factor of the smallest prime number and the smallest composite number is ()

The greatest common factor of the smallest prime number and the smallest composite number is (2)

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1. What is the greatest common factor of the minimum prime number and the maximum composite number The greatest common factor of the least prime and the greatest composite is () and the smallest common multiple is () The correct question is: If a and B are natural numbers and a △ B = 8, then the greatest common factor is () and the smallest common multiple is ()
2. In 1 to 10, the numbers that are neither prime nor composite numbers are (). () and (), even if composite numbers are coprime numbers; () and () are both prime and composite numbers Coprime numbers; () and () are prime numbers and composite numbers. They are also coprime numbers
3. Two prime numbers must be coprime numbers, two composite numbers cannot be coprime numbers______ ．
4. Two prime numbers must be coprime numbers, and two composite numbers must not be coprime numbers. Is that right or wrong?
5. "1 is neither a prime nor a composite number" can it form a coprime number with other natural numbers? Please comment on it. Why? According to the definition of Coprime number, only two natural numbers of "1" are coprime numbers. So the common divisor of "1, 3" is only "1", so 1 and 3 should be coprime numbers.
6. In 5.9.11.14, () and () are prime numbers and coprime numbers; () and () are composite numbers and coprime numbers
7. What are prime numbers, composite numbers, coprime numbers, prime numbers
8. The concept of factor and multiple There are three colors of lights in a circle. The red lights stop for one second, the yellow lights stop for two seconds, the green lights stop for four seconds, and all lights are on at the same time at 6 pm. When do the three lights come on again
9. What are factors and multiples
10. What is the relationship between factors and multiples
11. (1) What are the characteristics of common multiple and least common multiple? (2) what are the characteristics of prime number? (3) what are the characteristics of composite number?
12. Odd number, even number, prime number, composite number, prime number, common multiple, what is the largest and the smallest common factor? I said, what are the largest and smallest of the above numbers?
13. The greatest common factor of two numbers is 15, and the least common multiple is 90. These two numbers may be () and several (), or () and ()
14. The greatest common factor of the two numbers is 15, and the least common multiple is 90. These two numbers are () A. 15 and 90B. 30 and 60C. 45 and 90
15. The greatest common factor of two numbers is 15, and the least common multiple is 90. What is their product?
16. A = 2 * 3 * 7, B = 2 * 5 * 7, what is the greatest common factor and the least common multiple of a and B?
17. The number a is three times the number B, and the sum of the two numbers a and B is 96. Find the least common multiple and the greatest common factor of the two numbers a and B
18. A = 2 × 3 × 5 × 7, B = 2 × 5 × 11, the greatest common divisor of a and B is______ The least common multiple is______ ．
19. A = 2 × 3 × 5 × 7, B = 2 × 3 × 11, the greatest common factor of a and B is______ The least common multiple is______ ．
20. The greatest common factor of a and B is 3 and the least common multiple is 30. It is known that a is 6 and B is 1______ ．