Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7921 and 7924 the smallest integer that is 62766004 that is divisible by both numbers.
Least Common Multiple (LCM) of 7921 and 7924 is 62766004.
LCM(7921,7924) = 62766004
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 7921 and 7924. First we will calculate the prime factors of 7921 and 7924.
Prime Factorization of 7921
89 | 7921 |
89 | 89 |
1 |
Prime factors of 7921 are 89. Prime factorization of 7921 in exponential form is:
7921 = 892
Prime Factorization of 7924
2 | 7924 |
2 | 3962 |
7 | 1981 |
283 | 283 |
1 |
Prime factors of 7924 are 2, 7,283. Prime factorization of 7924 in exponential form is:
7924 = 22×71×2831
Now multiplying the highest exponent prime factors to calculate the LCM of 7921 and 7924.
LCM(7921,7924) = 22×71×892×2831
LCM(7921,7924) = 62766004
Factors of 7921
List of positive integer factors of 7921 that divides 7921 without a remainder.
1, 89, 7921
Factors of 7924
List of positive integer factors of 7924 that divides 7924 without a remainder.
1, 2, 4, 7, 14, 28, 283, 566, 1132, 1981, 3962, 7924
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7921 and 7924, than apply into the LCM equation.
GCF(7921,7924) = 1
LCM(7921,7924) = ( 7921 × 7924) / 1
LCM(7921,7924) = 62766004 / 1
LCM(7921,7924) = 62766004
(i) The LCM of 7924 and 7921 is associative
LCM of 7921 and 7924 = LCM of 7924 and 7921
1. What is the LCM of 7921 and 7924?
Answer: LCM of 7921 and 7924 is 62766004.
2. What are the Factors of 7921?
Answer: Factors of 7921 are 1, 89, 7921. There are 3 integers that are factors of 7921. The greatest factor of 7921 is 7921.
3. What are the Factors of 7924?
Answer: Factors of 7924 are 1, 2, 4, 7, 14, 28, 283, 566, 1132, 1981, 3962, 7924. There are 12 integers that are factors of 7924. The greatest factor of 7924 is 7924.
4. How to Find the LCM of 7921 and 7924?
Answer:
Least Common Multiple of 7921 and 7924 = 62766004
Step 1: Find the prime factorization of 7921
7921 = 89 x 89
Step 2: Find the prime factorization of 7924
7924 = 2 x 2 x 7 x 283
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 62766004 = 2 x 2 x 7 x 89 x 89 x 283
Step 4: Therefore, the least common multiple of 7921 and 7924 is 62766004.