Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7958 and 7964 the smallest integer that is 31688756 that is divisible by both numbers.
Least Common Multiple (LCM) of 7958 and 7964 is 31688756.
LCM(7958,7964) = 31688756
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 7958 and 7964. First we will calculate the prime factors of 7958 and 7964.
Prime Factorization of 7958
2 | 7958 |
23 | 3979 |
173 | 173 |
1 |
Prime factors of 7958 are 2, 23,173. Prime factorization of 7958 in exponential form is:
7958 = 21×231×1731
Prime Factorization of 7964
2 | 7964 |
2 | 3982 |
11 | 1991 |
181 | 181 |
1 |
Prime factors of 7964 are 2, 11,181. Prime factorization of 7964 in exponential form is:
7964 = 22×111×1811
Now multiplying the highest exponent prime factors to calculate the LCM of 7958 and 7964.
LCM(7958,7964) = 22×111×231×1731×1811
LCM(7958,7964) = 31688756
Factors of 7958
List of positive integer factors of 7958 that divides 7958 without a remainder.
1, 2, 23, 46, 173, 346, 3979, 7958
Factors of 7964
List of positive integer factors of 7964 that divides 7964 without a remainder.
1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 3982, 7964
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7958 and 7964, than apply into the LCM equation.
GCF(7958,7964) = 2
LCM(7958,7964) = ( 7958 × 7964) / 2
LCM(7958,7964) = 63377512 / 2
LCM(7958,7964) = 31688756
(i) The LCM of 7964 and 7958 is associative
LCM of 7958 and 7964 = LCM of 7964 and 7958
1. What is the LCM of 7958 and 7964?
Answer: LCM of 7958 and 7964 is 31688756.
2. What are the Factors of 7958?
Answer: Factors of 7958 are 1, 2, 23, 46, 173, 346, 3979, 7958. There are 8 integers that are factors of 7958. The greatest factor of 7958 is 7958.
3. What are the Factors of 7964?
Answer: Factors of 7964 are 1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 3982, 7964. There are 12 integers that are factors of 7964. The greatest factor of 7964 is 7964.
4. How to Find the LCM of 7958 and 7964?
Answer:
Least Common Multiple of 7958 and 7964 = 31688756
Step 1: Find the prime factorization of 7958
7958 = 2 x 23 x 173
Step 2: Find the prime factorization of 7964
7964 = 2 x 2 x 11 x 181
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 31688756 = 2 x 2 x 11 x 23 x 173 x 181
Step 4: Therefore, the least common multiple of 7958 and 7964 is 31688756.