What is the least common multiple of 15 and 10? I want to add what I'm looking for Put the common multiple in a row

What is the least common multiple of 15 and 10? I want to add what I'm looking for Put the common multiple in a row

Finding the least common multiple with the help of the greatest common divisor
Steps:
1、 First, the greatest common divisor of 15 and 10 is 5
2、 The least common multiple is the product of two numbers divided by the greatest common divisor
Leave 15 to 10 and divide by 5
15*10/5=30
So the least common multiple of 15 and 10 is 30

What is the least common multiple of 6 and 10?

It's 30

7 and 11, 31 and 13, 13 and 24 find out the least common multiple of each group. What rules do you find?
OK, I'll give you a bonus
7 and 8 5 and 25 3 and 28 11 and 16 find out the least common multiple of each group. What rule do you find?

[7,11]=7*11=77
[31,13]=31*13=403
[13,24]=13*24=312
[7,8]=7*8=56
[5,25]=25
[3,28]=3*28=84
[11,16]=11*16=176