Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 961 and 969 the smallest integer that is 931209 that is divisible by both numbers.
Least Common Multiple (LCM) of 961 and 969 is 931209.
LCM(961,969) = 931209
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 961 and 969. First we will calculate the prime factors of 961 and 969.
Prime Factorization of 961
31 | 961 |
31 | 31 |
1 |
Prime factors of 961 are 31. Prime factorization of 961 in exponential form is:
961 = 312
Prime Factorization of 969
3 | 969 |
17 | 323 |
19 | 19 |
1 |
Prime factors of 969 are 3, 17,19. Prime factorization of 969 in exponential form is:
969 = 31×171×191
Now multiplying the highest exponent prime factors to calculate the LCM of 961 and 969.
LCM(961,969) = 31×171×191×312
LCM(961,969) = 931209
Factors of 961
List of positive integer factors of 961 that divides 961 without a remainder.
1, 31, 961
Factors of 969
List of positive integer factors of 969 that divides 969 without a remainder.
1, 3, 17, 19, 51, 57, 323, 969
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 961 and 969, than apply into the LCM equation.
GCF(961,969) = 1
LCM(961,969) = ( 961 × 969) / 1
LCM(961,969) = 931209 / 1
LCM(961,969) = 931209
(i) The LCM of 969 and 961 is associative
LCM of 961 and 969 = LCM of 969 and 961
1. What is the LCM of 961 and 969?
Answer: LCM of 961 and 969 is 931209.
2. What are the Factors of 961?
Answer: Factors of 961 are 1, 31, 961. There are 3 integers that are factors of 961. The greatest factor of 961 is 961.
3. What are the Factors of 969?
Answer: Factors of 969 are 1, 3, 17, 19, 51, 57, 323, 969. There are 8 integers that are factors of 969. The greatest factor of 969 is 969.
4. How to Find the LCM of 961 and 969?
Answer:
Least Common Multiple of 961 and 969 = 931209
Step 1: Find the prime factorization of 961
961 = 31 x 31
Step 2: Find the prime factorization of 969
969 = 3 x 17 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 931209 = 3 x 17 x 19 x 31 x 31
Step 4: Therefore, the least common multiple of 961 and 969 is 931209.