Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 791 and 792 the smallest integer that is 626472 that is divisible by both numbers.
Least Common Multiple (LCM) of 791 and 792 is 626472.
LCM(791,792) = 626472
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 791 and 792. First we will calculate the prime factors of 791 and 792.
Prime Factorization of 791
7 | 791 |
113 | 113 |
1 |
Prime factors of 791 are 7,113. Prime factorization of 791 in exponential form is:
791 = 71×1131
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 791 and 792.
LCM(791,792) = 23×32×71×111×1131
LCM(791,792) = 626472
Factors of 791
List of positive integer factors of 791 that divides 791 without a remainder.
1, 7, 113, 791
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 791 and 792, than apply into the LCM equation.
GCF(791,792) = 1
LCM(791,792) = ( 791 × 792) / 1
LCM(791,792) = 626472 / 1
LCM(791,792) = 626472
(i) The LCM of 792 and 791 is associative
LCM of 791 and 792 = LCM of 792 and 791
1. What is the LCM of 791 and 792?
Answer: LCM of 791 and 792 is 626472.
2. What are the Factors of 791?
Answer: Factors of 791 are 1, 7, 113, 791. There are 4 integers that are factors of 791. The greatest factor of 791 is 791.
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 791 and 792?
Answer:
Least Common Multiple of 791 and 792 = 626472
Step 1: Find the prime factorization of 791
791 = 7 x 113
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 = 626472 = 2 x 2 x 2 x 3 x 3 x 7 x 11 x 113
Step 4: Therefore, the least common multiple of 791 and 792 is 626472.