Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1960 and 1964 the smallest integer that is 962360 that is divisible by both numbers.
Least Common Multiple (LCM) of 1960 and 1964 is 962360.
LCM(1960,1964) = 962360
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 1960 and 1964. First we will calculate the prime factors of 1960 and 1964.
Prime Factorization of 1960
2 | 1960 |
2 | 980 |
2 | 490 |
5 | 245 |
7 | 49 |
7 | 7 |
1 |
Prime factors of 1960 are 2, 5,7. Prime factorization of 1960 in exponential form is:
1960 = 23×51×72
Prime Factorization of 1964
2 | 1964 |
2 | 982 |
491 | 491 |
1 |
Prime factors of 1964 are 2,491. Prime factorization of 1964 in exponential form is:
1964 = 22×4911
Now multiplying the highest exponent prime factors to calculate the LCM of 1960 and 1964.
LCM(1960,1964) = 23×51×72×4911
LCM(1960,1964) = 962360
Factors of 1960
List of positive integer factors of 1960 that divides 1960 without a remainder.
1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960
Factors of 1964
List of positive integer factors of 1964 that divides 1964 without a remainder.
1, 2, 4, 491, 982, 1964
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1960 and 1964, than apply into the LCM equation.
GCF(1960,1964) = 4
LCM(1960,1964) = ( 1960 × 1964) / 4
LCM(1960,1964) = 3849440 / 4
LCM(1960,1964) = 962360
(i) The LCM of 1964 and 1960 is associative
LCM of 1960 and 1964 = LCM of 1964 and 1960
1. What is the LCM of 1960 and 1964?
Answer: LCM of 1960 and 1964 is 962360.
2. What are the Factors of 1960?
Answer: Factors of 1960 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960. There are 24 integers that are factors of 1960. The greatest factor of 1960 is 1960.
3. What are the Factors of 1964?
Answer: Factors of 1964 are 1, 2, 4, 491, 982, 1964. There are 6 integers that are factors of 1964. The greatest factor of 1964 is 1964.
4. How to Find the LCM of 1960 and 1964?
Answer:
Least Common Multiple of 1960 and 1964 = 962360
Step 1: Find the prime factorization of 1960
1960 = 2 x 2 x 2 x 5 x 7 x 7
Step 2: Find the prime factorization of 1964
1964 = 2 x 2 x 491
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 962360 = 2 x 2 x 2 x 5 x 7 x 7 x 491
Step 4: Therefore, the least common multiple of 1960 and 1964 is 962360.