The LCM is: 1,400
These are all the two-digit multiples of ten: 10, 20, 30, 40, 50, 60, 70, 80, 90.
2520
10 20 30 40 50 60 70 80 90 100
The multiples of 10 are {10, 20, 30, 40, 50, 60, 70, 80...} The multiples of 70 are {70, 140, 210...} The smallest number these sets have in common is 70.
12-12,24,36,48,60,72, etc. 10-10, 20, 30, 40, 50, 60, 70, etc. 60 is the LCM
The least common multiple of the numbers 30, 40 and 70 is 840.
Take your pick; 10 and 20, 10 and 30, 10 and 40, 10 and 50, 10 and 60, 10 and 70, 10 and 80, 10 and 90, 20 and 30, 20 and 50, 20 and 70, 20 and 90, 30 and 40, 30 and 50, 30 and 70, 30 and 80, 40 and 50, 40 and 70, 40 and 90, 50 and 60, 50 and 70, 50 and 80 50 and 90, 60 and 70, 70 and 80, 70 and 90, 80 and 90.
280
The LCM is 70. Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70 Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70 Multiples of 10: 10, 20, 30, 40, 50, 60, 70
The LCM of 60 and 70 is 420.
The Least Common Multiple (LCM) for 50 70 is 350.
For the values: 70 and 40 the LCM is: 280
LCM of 40 60 70 is 840. 40 = 2 x 2 x 2 x 5 60 = 2 x 2 x 3 x 5 70 = 2 x 5 x 7 Using the largest exponent method LCM = 23 x 31 x 51 x 71 = 8 x 3 x 5 x 7 = 840
40, 50 and 60
30, 50, 60 70 and so on.
The LCM is: 420