2760
Prime factors of 21 are: 3 and 7 Prime factors of 40 are: 23 and 5 LCM = 23*3*5*7 = 840
The LCM is 64. It goes 23 and then 64. When counting by eights it goes, 8, 16, 24, 32, 40, 48, 56, and then finally 64.
560. 40 = 23 x 5 112 = 24 x 7 lcm = 24 x 5 x 7 = 560
840. 15 = 3 x 5 21 = 3 x 7 40 = 23 x 5 lcm = 23 x 3 x 5 x 7 = 840
The LCM is 40.
120. 8=23 30=3*2*5 40=23*5. Include all factors once, that is, 23*3*5 and you get 120.
The LCM of 4, 5, and 8 is 40.
The LCM is 40.
Since 40 is a multiple of 2, it is automatically the LCM.
LCM is 40, which is the multiple of the highest power of prime factors in the given numbers (23 x 5).
LCM for 10 and 40 is 40.