Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3973 and 3980 the smallest integer that is 15812540 that is divisible by both numbers.
Least Common Multiple (LCM) of 3973 and 3980 is 15812540.
LCM(3973,3980) = 15812540
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 3973 and 3980. First we will calculate the prime factors of 3973 and 3980.
Prime Factorization of 3973
29 | 3973 |
137 | 137 |
1 |
Prime factors of 3973 are 29,137. Prime factorization of 3973 in exponential form is:
3973 = 291×1371
Prime Factorization of 3980
2 | 3980 |
2 | 1990 |
5 | 995 |
199 | 199 |
1 |
Prime factors of 3980 are 2, 5,199. Prime factorization of 3980 in exponential form is:
3980 = 22×51×1991
Now multiplying the highest exponent prime factors to calculate the LCM of 3973 and 3980.
LCM(3973,3980) = 22×51×291×1371×1991
LCM(3973,3980) = 15812540
Factors of 3973
List of positive integer factors of 3973 that divides 3973 without a remainder.
1, 29, 137, 3973
Factors of 3980
List of positive integer factors of 3980 that divides 3980 without a remainder.
1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3973 and 3980, than apply into the LCM equation.
GCF(3973,3980) = 1
LCM(3973,3980) = ( 3973 × 3980) / 1
LCM(3973,3980) = 15812540 / 1
LCM(3973,3980) = 15812540
(i) The LCM of 3980 and 3973 is associative
LCM of 3973 and 3980 = LCM of 3980 and 3973
1. What is the LCM of 3973 and 3980?
Answer: LCM of 3973 and 3980 is 15812540.
2. What are the Factors of 3973?
Answer: Factors of 3973 are 1, 29, 137, 3973. There are 4 integers that are factors of 3973. The greatest factor of 3973 is 3973.
3. What are the Factors of 3980?
Answer: Factors of 3980 are 1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980. There are 12 integers that are factors of 3980. The greatest factor of 3980 is 3980.
4. How to Find the LCM of 3973 and 3980?
Answer:
Least Common Multiple of 3973 and 3980 = 15812540
Step 1: Find the prime factorization of 3973
3973 = 29 x 137
Step 2: Find the prime factorization of 3980
3980 = 2 x 2 x 5 x 199
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 15812540 = 2 x 2 x 5 x 29 x 137 x 199
Step 4: Therefore, the least common multiple of 3973 and 3980 is 15812540.