5 or 1
5 would be the greatest common factor (GCF) but the LCM (Least Common Multiple) is found by either listing factors of both numbers, or by prime factorization.
The prime factorization method:
30 = 2*3*5
35 = 5*7
So the LCM = 2*3*5*7 = 210
Note that 210/30 = 7 and 210/35 = 6 so both numbers, 30 and 35 are factors of 210.
The listing method:
30,60,90,120,150,180,210
35,70,105,140,175,210
So 210 is the first (least) number that is a multiple of 30 and 35
Chat with our AI personalities
The Least Common Multiple (LCM) of 20, 30, and 35 is 420.
The LCM of 5 and 7 is 35. LCM stands for Least Common Multiple, or Lowest Common Multiple.
The LCM is: 175
The LCM of 35 and 75 is 525.
The LCM is 840.