Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6978 and 6985 the smallest integer that is 48741330 that is divisible by both numbers.
Least Common Multiple (LCM) of 6978 and 6985 is 48741330.
LCM(6978,6985) = 48741330
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 6978 and 6985. First we will calculate the prime factors of 6978 and 6985.
Prime Factorization of 6978
2 | 6978 |
3 | 3489 |
1163 | 1163 |
1 |
Prime factors of 6978 are 2, 3,1163. Prime factorization of 6978 in exponential form is:
6978 = 21×31×11631
Prime Factorization of 6985
5 | 6985 |
11 | 1397 |
127 | 127 |
1 |
Prime factors of 6985 are 5, 11,127. Prime factorization of 6985 in exponential form is:
6985 = 51×111×1271
Now multiplying the highest exponent prime factors to calculate the LCM of 6978 and 6985.
LCM(6978,6985) = 21×31×51×111×1271×11631
LCM(6978,6985) = 48741330
Factors of 6978
List of positive integer factors of 6978 that divides 6978 without a remainder.
1, 2, 3, 6, 1163, 2326, 3489, 6978
Factors of 6985
List of positive integer factors of 6985 that divides 6985 without a remainder.
1, 5, 11, 55, 127, 635, 1397, 6985
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6978 and 6985, than apply into the LCM equation.
GCF(6978,6985) = 1
LCM(6978,6985) = ( 6978 × 6985) / 1
LCM(6978,6985) = 48741330 / 1
LCM(6978,6985) = 48741330
(i) The LCM of 6985 and 6978 is associative
LCM of 6978 and 6985 = LCM of 6985 and 6978
1. What is the LCM of 6978 and 6985?
Answer: LCM of 6978 and 6985 is 48741330.
2. What are the Factors of 6978?
Answer: Factors of 6978 are 1, 2, 3, 6, 1163, 2326, 3489, 6978. There are 8 integers that are factors of 6978. The greatest factor of 6978 is 6978.
3. What are the Factors of 6985?
Answer: Factors of 6985 are 1, 5, 11, 55, 127, 635, 1397, 6985. There are 8 integers that are factors of 6985. The greatest factor of 6985 is 6985.
4. How to Find the LCM of 6978 and 6985?
Answer:
Least Common Multiple of 6978 and 6985 = 48741330
Step 1: Find the prime factorization of 6978
6978 = 2 x 3 x 1163
Step 2: Find the prime factorization of 6985
6985 = 5 x 11 x 127
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 48741330 = 2 x 3 x 5 x 11 x 127 x 1163
Step 4: Therefore, the least common multiple of 6978 and 6985 is 48741330.