A / b = 10 (a, B are non-zero natural numbers), then what is the greatest common factor of a and B? What is the least common multiple?

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• 1. A △ B = 8 (A.B is a non-zero natural number), then the greatest common factor of A.B is (), and the least common multiple is ()
• 2. M and N are two adjacent non-zero natural numbers. Their greatest common factor is 1 and their least common multiple is?
• 3. a. B is two different prime numbers, then the greatest common factor of a and B is______ The least common multiple of a and B is______ ．
• 4. If a = B + 1 (A and B are non-zero natural numbers, and a is not equal to 0), then the greatest common factor of a and B is () and the least common multiple is () I'm at a loss about this topic
• 5. If a / b = 6 (A and B are natural numbers not equal to 0), then the greatest common factor of a and B is () and the least common multiple is () 50 more in an hour
• 6. The sum of two different natural numbers is 60, and the sum of their greatest common factor and least common multiple is also 60. How many groups of natural numbers meet the conditions?
• 7. The greatest common factor of two natural numbers is 8, and the least common multiple is 120. The minimum difference between the two numbers is (), and the maximum is ()
• 8. There are two natural numbers whose greatest common factor is 8 and least common multiple is 240. These two natural numbers may be () and () or () and ()
• 9. The greatest common divisor of two natural numbers is 15, and the least common multiple is 180. What are the two natural numbers? Please use the common factor and common multiple method to solve, thank you
• 10. How to prove that the product of two numbers is equal to the product of the greatest common divisor and the least common multiple?
• 11. If a / b = 1 1 (A. B is a non-zero natural number), then the greatest common factor of a and B is (), and the least common multiple is ()
• 12. A is a non-zero natural number, B = a + 1, the greatest common factor of a and B is (), and the least common multiple is ()? Please! Hurry!
• 13. M / N = 8 (M and N are non-zero natural numbers) what is the least common multiple of M and N?
• 14. m. If n * 6 = m, what is the least common multiple of M and N
• 15. A = 2x3xm, B = 3x5xm, if the greatest common factor of B is 21, then M is? AB, and the least common multiple is?
• 16. A = 2x3xm, B = 3x5xm. A, the greatest common factor of B is 21, M = ()
• 17. If the greatest common factor of natural numbers a and B is 1, then the least common multiple of a and B is () A. Abb. AC. BD. cannot be determined
• 18. a. B is two non-zero natural numbers, and a △ B = 7, then the least common multiple of a and B is () and the greatest common factor is ()
• 19. A and B are two adjacent natural numbers, so what must a and B be? What is their greatest common factor and least common multiple?
• 20. a. B is two adjacent non-zero natural numbers, then the greatest common factor of a and B is (), and the least common multiple of a and B is () The waist length of an isosceles triangle is 5 decimeters, and its area is Finding the least common multiple of each group 12 and 8 7 and 4 9 and 6 Find the greatest common factor of each group of numbers below 12 and 24 10 and 18 9 and 4 Find out the equal score 45 / 66, 95 / 25, 139 / 133 / 2 / 3 Three fifths, two fifths