LCM of 8 and 21 is 168
The least common multiple or LCM of two numbers 8 and 21 is defined as the smallest positive integer which is divisible by both of them. It is represented by LCM(8, 21).
Hence, LCM of 8 and 21 is 168.
| 2 | 8 21 |
| 2 | 4 21 |
| 2 | 2 21 |
| 3 | 1 21 |
| 7 | 1 7 |
| 1 1 |
Hence, LCM of 8 and 21 is 2 x 2 x 2 x 3 x 7 = 168.
Hence, LCM of 8 and 21 is 168.
Franky and Joy are running on a circular track. They take 8 and 21 minutes respectively to go round once. We need to find out at what time (minimum) they will run together again. For this we need to find the LCM of 8 and 21.So, LCM of 8 and 21 is 168.
The least number of candies and chocolates Annie should buy so that there will be one candy for each chocolate we need to find the lcm of 8 and 21.So, LCM of 8 and 21 is 168.
Given that the cricket team plays every 8 days and the basketball team plays every 21 days, so for finding the next time when both teams will play again we need to find the LCM of 8 and 21.So, LCM of 8 and 21 is 168.
To find the least number of textbooks that each company could have printed we need to find the LCM of 8 and 21.So, LCM of 8 and 21 is 168.
The problem can be solved using LCM, because we are trying to figure out the least time until they excercise together again.So, LCM of 8 and 21 is 168.
Greatest common factors or gcf of 8 and 21 is GCF(8, 21) * LCM(8, 21) = (8 x 21) / GCF(8, 21) = 168.
Least number which is exactly divisible by 8 and 21 is 168.