Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 789 and 792 the smallest integer that is 208296 that is divisible by both numbers.
Least Common Multiple (LCM) of 789 and 792 is 208296.
LCM(789,792) = 208296
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 789 and 792. First we will calculate the prime factors of 789 and 792.
Prime Factorization of 789
3 | 789 |
263 | 263 |
1 |
Prime factors of 789 are 3,263. Prime factorization of 789 in exponential form is:
789 = 31×2631
Prime Factorization of 792
2 | 792 |
2 | 396 |
2 | 198 |
3 | 99 |
3 | 33 |
11 | 11 |
1 |
Prime factors of 792 are 2, 3,11. Prime factorization of 792 in exponential form is:
792 = 23×32×111
Now multiplying the highest exponent prime factors to calculate the LCM of 789 and 792.
LCM(789,792) = 23×32×111×2631
LCM(789,792) = 208296
Factors of 789
List of positive integer factors of 789 that divides 789 without a remainder.
1, 3, 263, 789
Factors of 792
List of positive integer factors of 792 that divides 792 without a remainder.
1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 132, 198, 264, 396, 792
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 789 and 792, than apply into the LCM equation.
GCF(789,792) = 3
LCM(789,792) = ( 789 × 792) / 3
LCM(789,792) = 624888 / 3
LCM(789,792) = 208296
(i) The LCM of 792 and 789 is associative
LCM of 789 and 792 = LCM of 792 and 789
1. What is the LCM of 789 and 792?
Answer: LCM of 789 and 792 is 208296.
2. What are the Factors of 789?
Answer: Factors of 789 are 1, 3, 263, 789. There are 4 integers that are factors of 789. The greatest factor of 789 is 789.
3. What are the Factors of 792?
Answer: Factors of 792 are 1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 132, 198, 264, 396, 792. There are 24 integers that are factors of 792. The greatest factor of 792 is 792.
4. How to Find the LCM of 789 and 792?
Answer:
Least Common Multiple of 789 and 792 = 208296
Step 1: Find the prime factorization of 789
789 = 3 x 263
Step 2: Find the prime factorization of 792
792 = 2 x 2 x 2 x 3 x 3 x 11
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 208296 = 2 x 2 x 2 x 3 x 3 x 11 x 263
Step 4: Therefore, the least common multiple of 789 and 792 is 208296.