Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9940 and 9946 the smallest integer that is 49431620 that is divisible by both numbers.
Least Common Multiple (LCM) of 9940 and 9946 is 49431620.
LCM(9940,9946) = 49431620
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 9940 and 9946. First we will calculate the prime factors of 9940 and 9946.
Prime Factorization of 9940
2 | 9940 |
2 | 4970 |
5 | 2485 |
7 | 497 |
71 | 71 |
1 |
Prime factors of 9940 are 2, 5, 7,71. Prime factorization of 9940 in exponential form is:
9940 = 22×51×71×711
Prime Factorization of 9946
2 | 9946 |
4973 | 4973 |
1 |
Prime factors of 9946 are 2,4973. Prime factorization of 9946 in exponential form is:
9946 = 21×49731
Now multiplying the highest exponent prime factors to calculate the LCM of 9940 and 9946.
LCM(9940,9946) = 22×51×71×711×49731
LCM(9940,9946) = 49431620
Factors of 9940
List of positive integer factors of 9940 that divides 9940 without a remainder.
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940
Factors of 9946
List of positive integer factors of 9946 that divides 9946 without a remainder.
1, 2, 4973, 9946
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9940 and 9946, than apply into the LCM equation.
GCF(9940,9946) = 2
LCM(9940,9946) = ( 9940 × 9946) / 2
LCM(9940,9946) = 98863240 / 2
LCM(9940,9946) = 49431620
(i) The LCM of 9946 and 9940 is associative
LCM of 9940 and 9946 = LCM of 9946 and 9940
1. What is the LCM of 9940 and 9946?
Answer: LCM of 9940 and 9946 is 49431620.
2. What are the Factors of 9940?
Answer: Factors of 9940 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940. There are 24 integers that are factors of 9940. The greatest factor of 9940 is 9940.
3. What are the Factors of 9946?
Answer: Factors of 9946 are 1, 2, 4973, 9946. There are 4 integers that are factors of 9946. The greatest factor of 9946 is 9946.
4. How to Find the LCM of 9940 and 9946?
Answer:
Least Common Multiple of 9940 and 9946 = 49431620
Step 1: Find the prime factorization of 9940
9940 = 2 x 2 x 5 x 7 x 71
Step 2: Find the prime factorization of 9946
9946 = 2 x 4973
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 49431620 = 2 x 2 x 5 x 7 x 71 x 4973
Step 4: Therefore, the least common multiple of 9940 and 9946 is 49431620.