Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1970 and 1973 the smallest integer that is 3886810 that is divisible by both numbers.
Least Common Multiple (LCM) of 1970 and 1973 is 3886810.
LCM(1970,1973) = 3886810
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 1970 and 1973. First we will calculate the prime factors of 1970 and 1973.
Prime Factorization of 1970
2 | 1970 |
5 | 985 |
197 | 197 |
1 |
Prime factors of 1970 are 2, 5,197. Prime factorization of 1970 in exponential form is:
1970 = 21×51×1971
Prime Factorization of 1973
1973 | 1973 |
1 |
Prime factors of 1973 are 1973. Prime factorization of 1973 in exponential form is:
1973 = 19731
Now multiplying the highest exponent prime factors to calculate the LCM of 1970 and 1973.
LCM(1970,1973) = 21×51×1971×19731
LCM(1970,1973) = 3886810
Factors of 1970
List of positive integer factors of 1970 that divides 1970 without a remainder.
1, 2, 5, 10, 197, 394, 985, 1970
Factors of 1973
List of positive integer factors of 1973 that divides 1973 without a remainder.
1, 1973
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1970 and 1973, than apply into the LCM equation.
GCF(1970,1973) = 1
LCM(1970,1973) = ( 1970 × 1973) / 1
LCM(1970,1973) = 3886810 / 1
LCM(1970,1973) = 3886810
(i) The LCM of 1973 and 1970 is associative
LCM of 1970 and 1973 = LCM of 1973 and 1970
1. What is the LCM of 1970 and 1973?
Answer: LCM of 1970 and 1973 is 3886810.
2. What are the Factors of 1970?
Answer: Factors of 1970 are 1, 2, 5, 10, 197, 394, 985, 1970. There are 8 integers that are factors of 1970. The greatest factor of 1970 is 1970.
3. What are the Factors of 1973?
Answer: Factors of 1973 are 1, 1973. There are 2 integers that are factors of 1973. The greatest factor of 1973 is 1973.
4. How to Find the LCM of 1970 and 1973?
Answer:
Least Common Multiple of 1970 and 1973 = 3886810
Step 1: Find the prime factorization of 1970
1970 = 2 x 5 x 197
Step 2: Find the prime factorization of 1973
1973 = 1973
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3886810 = 2 x 5 x 197 x 1973
Step 4: Therefore, the least common multiple of 1970 and 1973 is 3886810.