How to calculate the greatest common factor and the least common multiple

For example: find the least common multiple of 8 and 9
Because 8 and 9 are prime to each other
So their product is the result
8x9 equals 72

RELATED INFORMATIONS

1. There are two numbers whose greatest common factor is 18 and least common multiple is 108. What is the number? What is the formula?
2. There must be a formula for calculating the greatest common factor and the least common multiple of 45 and 50 by decomposing the quality factor
3. If the greatest common factor of two numbers is 12 and the least common multiple is 144, what is the sum of the two numbers?
4. The greatest common factor of the two numbers is 6, and the least common multiple is 144. What are the two numbers
5. The greatest common factor of two positive integers is 12, the least common multiple is 144, and one of them is 48
6. There are two positive integers whose least common multiple is 144 and least common factor is 12. If one of them is 36, then the other is 36 Such as the title
7. The greatest common factor of two numbers is 6 and the least common multiple is 144. What is the product of these two numbers?
8. There are two double digits, their greatest common factor is 6, and their least common multiple is 144
9. It is known that two numbers are not multiple relations, and the greatest common factor of the two numbers is 6, and the least common multiple is 144. What is the sum and product of the two numbers?
10. Finding the least common multiple 4.5.8 by short division of three numbers 4、5、8
11. If you know the greatest common factor and the least common multiple, how can you find it? For example, the greatest common factor is 6 and the least common multiple is 90. You need to calculate the method + formula accurately
12. The greatest common factor of a and B is 6, and the least common multiple is 36. How many numbers can a and B be?
13. If the greatest common factor of two numbers is 6 and the least common multiple is 36, then these two numbers are
14. The greatest common factor of two numbers is 6, and the least common multiple is 36
15. The greatest common factor of a and B is 6, and the least common multiple is 36. How many numbers can a and B be?
16. The greatest common factor of two numbers is 60, the least common multiple is 720, and one of them is 180. Find the difference between the two numbers
17. The greatest common divisor of two numbers is 60, the least common multiple is 720, and one of them is 180. What is the difference between the two numbers?
18. It is known that the greatest common factor of a and B is 60, the least common multiple is 720, and one of them is 180. What is the difference between the two numbers Ladies and gentlemen,
19. The least common multiple of 24 and 12 is () times their greatest common factor
20. What is the greatest common factor of 18 and 12______ The least common multiple of 6 and 12 is______ ．