LCM of 15 and 28 is 420
LCM stands for least common multiple. In mathematics, LCM of two numbers 15 and 28, is defined as the smallest positive integer that is divisible by both. It is written as LCM(15, 28).
Hence, LCM of 15 and 28 is 420.
| 2 | 15 28 |
| 2 | 15 14 |
| 3 | 15 7 |
| 5 | 5 7 |
| 7 | 1 7 |
| 1 1 |
Hence, LCM of 15 and 28 is 2 x 2 x 3 x 5 x 7 = 420.
Hence, LCM of 15 and 28 is 420.
Franky and Joy are running on a circular track. They take 15 and 28 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 15 and 28.So, LCM of 15 and 28 is 420.
To find the least height in feet at which the two piles will be at same height we will find LCM of 15 and 28.So, LCM of 15 and 28 is 420.
To find the least number of textbooks that each company could have printed we need to find the LCM of 15 and 28.So, LCM of 15 and 28 is 420.
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 15 and 28 is 420.
Greatest common factor or gcf of 15 and 28 is GCF(15, 28) x LCM(15, 28) = (15 x 28) / GCF(15, 28) = 420.
Least common multiple of 15 and 28 is 420.
Least number which is exactly divisible by 15 and 28 is 420.