Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1956 and 1960 the smallest integer that is 958440 that is divisible by both numbers.
Least Common Multiple (LCM) of 1956 and 1960 is 958440.
LCM(1956,1960) = 958440
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 1956 and 1960. First we will calculate the prime factors of 1956 and 1960.
Prime Factorization of 1956
2 | 1956 |
2 | 978 |
3 | 489 |
163 | 163 |
1 |
Prime factors of 1956 are 2, 3,163. Prime factorization of 1956 in exponential form is:
1956 = 22×31×1631
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
Now multiplying the highest exponent prime factors to calculate the LCM of 1956 and 1960.
LCM(1956,1960) = 23×31×51×72×1631
LCM(1956,1960) = 958440
Factors of 1956
List of positive integer factors of 1956 that divides 1956 without a remainder.
1, 2, 3, 4, 6, 12, 163, 326, 489, 652, 978, 1956
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1956 and 1960, than apply into the LCM equation.
GCF(1956,1960) = 4
LCM(1956,1960) = ( 1956 × 1960) / 4
LCM(1956,1960) = 3833760 / 4
LCM(1956,1960) = 958440
(i) The LCM of 1960 and 1956 is associative
LCM of 1956 and 1960 = LCM of 1960 and 1956
1. What is the LCM of 1956 and 1960?
Answer: LCM of 1956 and 1960 is 958440.
2. What are the Factors of 1956?
Answer: Factors of 1956 are 1, 2, 3, 4, 6, 12, 163, 326, 489, 652, 978, 1956. There are 12 integers that are factors of 1956. The greatest factor of 1956 is 1956.
3. 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.
4. How to Find the LCM of 1956 and 1960?
Answer:
Least Common Multiple of 1956 and 1960 = 958440
Step 1: Find the prime factorization of 1956
1956 = 2 x 2 x 3 x 163
Step 2: Find the prime factorization of 1960
1960 = 2 x 2 x 2 x 5 x 7 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 958440 = 2 x 2 x 2 x 3 x 5 x 7 x 7 x 163
Step 4: Therefore, the least common multiple of 1956 and 1960 is 958440.