A = 2 × 3 × 5, B = 2 × 5 × 7, the greatest common factor of a and B is______ The least common multiple is______ ．

RELATED INFORMATIONS

• 1. The divisor of 24 is______ We decompose 24, and the prime factor is______ ．
• 2. A number is not only a multiple of 24, but also a divisor of 24. The prime factor of decomposition is () fast
• 3. The minimum multiple of the greatest divisor of a number is 21. This number is 21. If we decompose it into prime factor, it is
• 4. The maximum factor of a number is 36, and the number is______ All of its factors are______ The minimum multiple of this number is______ ．
• 5. Two questions: one question: a number is not only a multiple of 21, but also a divisor of 21. What is the number? What is the prime factor when it is decomposed? The second question: a natural number divided by 2, 3, 4, 5, the result is more than 1, how many such numbers? What is the smallest?
• 6. A three digit number, which contains the divisor 2, is a multiple of 5, and can be divided by 3. The minimum number is (), and the prime factor is ()
• 7. The divisor of 7.18 is "and four divisors in the number are selected to form the proportion of" 7.18 "
• 8. The factor of 18 is______ From which four numbers are selected to form a proportion______ ．
• 9. The factor of 18 is______ From which four numbers are selected to form a proportion______ ．
• 10. The factor of 18 is______ From which four numbers are selected to form a proportion______ ．
• 11. A = 2 * 3 * a, B = 3 * 5 * B, the greatest common divisor of a and B is 15, and the least common multiple of a and B is?
• 12. The number a is 24, the least common multiple of a and B is 168, the greatest common factor is four, what is the number B?
• 13. The number a is 24, the least common multiple of a and B is 168, and the greatest common divisor is 4?
• 14. It is known that the number a is 24, the least common multiple of it and number B is 168, their greatest common divisor is 12, and number B is?
• 15. The number a is 24, the least common multiple of a and B is 168, and the greatest common divisor is 4?
• 16. If a large number is a multiple of a decimal, then the greatest common factor of the two numbers is______ The least common multiple of these two numbers is______ ．
• 17. If a large number is a multiple of a decimal, then the greatest common factor of the two numbers is______ The least common multiple of these two numbers is______ ．
• 18. The greatest common divisor of two numbers is 15, the least common multiple is 180, and the large number is not a multiple of a decimal. What are the two numbers?
• 19. There is a six digit a1989b which can be divided by 44. This six digit is () the difference between two natural numbers is 3, and their greatest common factor and least common multiple are 180 There is a six digit a1989b that can be divided by 44. This six digit is () The difference between two natural numbers is 3, and their greatest common factor and least common multiple are 180. These two numbers are () and ()
• 20. There are two natural numbers whose least common multiple is 640 and the greatest common divisor is 8, but these two numbers are not divisible by each other. These two numbers are () and ()