LCM of 45 and 21 is 315
LCM stands for least common multiple. In mathematics, LCM of two numbers 45 and 21, is defined as the smallest positive integer that is divisible by both. It is written as LCM(45, 21).
Hence, LCM of 45 and 21 is 315.
| 3 | 45 21 |
| 3 | 15 7 |
| 5 | 5 7 |
| 7 | 1 7 |
| 1 1 |
Hence, LCM of 45 and 21 is 3 x 3 x 5 x 7 = 315.
Hence, LCM of 45 and 21 is 315.
To find the least number of days that would be taken to be able to spend the same amount of dollars we need to find the LCM of 45 and 21.So, LCM of 45 and 21 is 315.
To find the least height in feet at which the two piles will be at same height we will find LCM of 45 and 21.So, LCM of 45 and 21 is 315.
To find the least number of textbooks that each company could have printed we need to find the LCM of 45 and 21.So, LCM of 45 and 21 is 315.
Ram and Deepika are running on a circular track. They take 45 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 45 and 21.So, LCM of 45 and 21 is 315.
Greatest common factor or gcf of 45 and 21 is GCF(45, 21) x LCM(45, 21) = (45 x 21) / GCF(45, 21) = 315.
Least common multiple of 45 and 21 is 315.
Least number which is exactly divisible by 45 and 21 is 315.