Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1979 and 1983 the smallest integer that is 3924357 that is divisible by both numbers.
Least Common Multiple (LCM) of 1979 and 1983 is 3924357.
LCM(1979,1983) = 3924357
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 1979 and 1983. First we will calculate the prime factors of 1979 and 1983.
Prime Factorization of 1979
1979 | 1979 |
1 |
Prime factors of 1979 are 1979. Prime factorization of 1979 in exponential form is:
1979 = 19791
Prime Factorization of 1983
3 | 1983 |
661 | 661 |
1 |
Prime factors of 1983 are 3,661. Prime factorization of 1983 in exponential form is:
1983 = 31×6611
Now multiplying the highest exponent prime factors to calculate the LCM of 1979 and 1983.
LCM(1979,1983) = 31×6611×19791
LCM(1979,1983) = 3924357
Factors of 1979
List of positive integer factors of 1979 that divides 1979 without a remainder.
1, 1979
Factors of 1983
List of positive integer factors of 1983 that divides 1983 without a remainder.
1, 3, 661, 1983
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1979 and 1983, than apply into the LCM equation.
GCF(1979,1983) = 1
LCM(1979,1983) = ( 1979 × 1983) / 1
LCM(1979,1983) = 3924357 / 1
LCM(1979,1983) = 3924357
(i) The LCM of 1983 and 1979 is associative
LCM of 1979 and 1983 = LCM of 1983 and 1979
1. What is the LCM of 1979 and 1983?
Answer: LCM of 1979 and 1983 is 3924357.
2. What are the Factors of 1979?
Answer: Factors of 1979 are 1, 1979. There are 2 integers that are factors of 1979. The greatest factor of 1979 is 1979.
3. What are the Factors of 1983?
Answer: Factors of 1983 are 1, 3, 661, 1983. There are 4 integers that are factors of 1983. The greatest factor of 1983 is 1983.
4. How to Find the LCM of 1979 and 1983?
Answer:
Least Common Multiple of 1979 and 1983 = 3924357
Step 1: Find the prime factorization of 1979
1979 = 1979
Step 2: Find the prime factorization of 1983
1983 = 3 x 661
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3924357 = 3 x 661 x 1979
Step 4: Therefore, the least common multiple of 1979 and 1983 is 3924357.