Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7911 and 7914 the smallest integer that is 20869218 that is divisible by both numbers.
Least Common Multiple (LCM) of 7911 and 7914 is 20869218.
LCM(7911,7914) = 20869218
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 7911 and 7914. First we will calculate the prime factors of 7911 and 7914.
Prime Factorization of 7911
3 | 7911 |
3 | 2637 |
3 | 879 |
293 | 293 |
1 |
Prime factors of 7911 are 3,293. Prime factorization of 7911 in exponential form is:
7911 = 33×2931
Prime Factorization of 7914
2 | 7914 |
3 | 3957 |
1319 | 1319 |
1 |
Prime factors of 7914 are 2, 3,1319. Prime factorization of 7914 in exponential form is:
7914 = 21×31×13191
Now multiplying the highest exponent prime factors to calculate the LCM of 7911 and 7914.
LCM(7911,7914) = 21×33×2931×13191
LCM(7911,7914) = 20869218
Factors of 7911
List of positive integer factors of 7911 that divides 7911 without a remainder.
1, 3, 9, 27, 293, 879, 2637, 7911
Factors of 7914
List of positive integer factors of 7914 that divides 7914 without a remainder.
1, 2, 3, 6, 1319, 2638, 3957, 7914
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7911 and 7914, than apply into the LCM equation.
GCF(7911,7914) = 3
LCM(7911,7914) = ( 7911 × 7914) / 3
LCM(7911,7914) = 62607654 / 3
LCM(7911,7914) = 20869218
(i) The LCM of 7914 and 7911 is associative
LCM of 7911 and 7914 = LCM of 7914 and 7911
1. What is the LCM of 7911 and 7914?
Answer: LCM of 7911 and 7914 is 20869218.
2. What are the Factors of 7911?
Answer: Factors of 7911 are 1, 3, 9, 27, 293, 879, 2637, 7911. There are 8 integers that are factors of 7911. The greatest factor of 7911 is 7911.
3. What are the Factors of 7914?
Answer: Factors of 7914 are 1, 2, 3, 6, 1319, 2638, 3957, 7914. There are 8 integers that are factors of 7914. The greatest factor of 7914 is 7914.
4. How to Find the LCM of 7911 and 7914?
Answer:
Least Common Multiple of 7911 and 7914 = 20869218
Step 1: Find the prime factorization of 7911
7911 = 3 x 3 x 3 x 293
Step 2: Find the prime factorization of 7914
7914 = 2 x 3 x 1319
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 20869218 = 2 x 3 x 3 x 3 x 293 x 1319
Step 4: Therefore, the least common multiple of 7911 and 7914 is 20869218.