LCM of 9 and 21 is 63
In mathematics, least common multiple, which is ordinarily reffered to as LCM is characterized as the smallest non-zero number which is divisible by both given numbers 9 and 21.
Hence, LCM of 9 and 21 is 63.
| 3 | 9 21 |
| 3 | 3 7 |
| 7 | 1 7 |
| 1 1 |
Hence, LCM of 9 and 21 is 3 x 3 x 7 = 63.
Hence, LCM of 9 and 21 is 63.
Franky and Joy are running on a circular track. They take 9 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 9 and 21.So, LCM of 9 and 21 is 63.
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 9 and 21.So, LCM of 9 and 21 is 63.
To find the least height in feet at which the two piles will be at same height we will find LCM of 9 and 21.So, LCM of 9 and 21 is 63.
To find the least number of textbooks that each company could have printed we need to find the LCM of 9 and 21.So, LCM of 9 and 21 is 63.
Greatest common factors or gcf of 9 and 21 is GCF(9, 21) * LCM(9, 21) = (9 x 21) / GCF(9, 21) = 63.
Least number which is exactly divisible by 9 and 21 is 63.
Greatest common factor or gcf of 9 and 21 is GCF(9, 21) x LCM(9, 21) = (9 x 21) / GCF(9, 21) = 63.