Hello, im in 6th grade and im trying to find out the least common multiple of a number and the greatest common factor of a number. I don't know what they are. thanks

Answer 1

The least common multiple is the smallest number that can be evenly divided by two or more numbers.

LCM: 3, 4 = 12
LCM: 2, 5 = 10

http://www.mathsisfun.com/least-common-multiple.html

The greatest common factor is the largest number that goes into two or more numbers.

GCF: 6, 12 = 6
GCF: 3, 5, 15 = 3

http://www.mathsisfun.com/greatest-common-factor.html