Expressing each number as the product of prime numbers can help a lot:
21 = 3x7
35 = 5x7
7 is the greatest common factor(H.C.F.) of 21 and 35.
H.C.F.(21,35) = 7
Method to find L.C.M. of x and y:
L.C.M.(x,y) = H.C.F.(x,y) x Product of other no. in prime factorizations of x and y
So, L.C.M.(21,35) = H.C.F.(21,35) x 3x5 = 7x3x5 = 21x5 = 105.
The least common multiple of 7, 21, 35 is:105
The LCM of 7, 21 and 35 is 105.
The least common multiple of the numbers 14, 35 and 21 is 210.
The Least Common Multiple (LCM) for 28 35 21 14 is 420.
Least Common Multiple (LCM) for 21 35 is 105
The least common multiple is 105. (35x3 and 21x5)
The LCM of 15, 21 and 35 is 105.
Least Common Multiple (LCM) for 21 35 is 105.
735
That would be 105.
210
The Least Common Multiple (LCM) of 35, 21, and 28 is 420.