The least common multiple of 6,12,30,42,56,72,90

The least common multiple of 6,12,30,42,56,72,90

Common multiple 2520

What is the least common multiple of 3,12,20,30,42,56,72,90

90 is the multiple of 30 and 3, so the multiple of 90 must be 3 and 30, 30 and 3 can be omitted, and the rest are: 12, 20, 42, 56, 72, 90
72 is a multiple of 12, which can be omitted, leaving 20, 42, 56, 72, 90
At the same time, divide by 2; the rest: 10, 21, 28, 36, 45
So the least common multiple is: 10 * 21 * 28 * 36 * 45 = 9525600

What is the least common multiple of 2 6 12 20 30 42 56

3*5*7*8=840

Common factor and common multiple
There are 24 exercise books and 18 pens. They are awarded to the students. Each student is required to share the same amount. How many people can be awarded at most? How many exercise books and pens can each person get?

The maximum number of winners is 6, which is the greatest common divisor of two numbers. Each of them can get 4 exercise books and 3 pens