In order to find the LCM, you first split the two numbers into their factors:
15 is 5x3
12 is 3x2x2
Then you ignore any duplicate factors. In this case 3 is a factor of both, so we only need to count 3 once. We're left with 5,3,2 and 2.
Multiply all these numbers together to get the LCM of 15 and 12:
5x3x2x2=60
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The lowest lowest common factor (lcf) of 12, 6, and 7 is 1.
3
Oh, dude, the LCF of 15 and 18 is 3. It's like the smallest number that both 15 and 18 can be divided by without leaving a remainder. So yeah, that's the deal with the LCF, nothing too crazy.
3
The LCF is 1. The GCF is 3.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The LCF of any set of numbers is 1.
?
The lowest lowest common factor (lcf) of 12, 6, and 7 is 1.
5
3
Since the CFs of neither match, you have to multiply the two numbers together. The answer you get is the LCF. You do the math.