Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 942 and 945 the smallest integer that is 296730 that is divisible by both numbers.
Least Common Multiple (LCM) of 942 and 945 is 296730.
LCM(942,945) = 296730
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 942 and 945. First we will calculate the prime factors of 942 and 945.
Prime Factorization of 942
2 | 942 |
3 | 471 |
157 | 157 |
1 |
Prime factors of 942 are 2, 3,157. Prime factorization of 942 in exponential form is:
942 = 21×31×1571
Prime Factorization of 945
3 | 945 |
3 | 315 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 945 are 3, 5,7. Prime factorization of 945 in exponential form is:
945 = 33×51×71
Now multiplying the highest exponent prime factors to calculate the LCM of 942 and 945.
LCM(942,945) = 21×33×51×71×1571
LCM(942,945) = 296730
Factors of 942
List of positive integer factors of 942 that divides 942 without a remainder.
1, 2, 3, 6, 157, 314, 471, 942
Factors of 945
List of positive integer factors of 945 that divides 945 without a remainder.
1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 942 and 945, than apply into the LCM equation.
GCF(942,945) = 3
LCM(942,945) = ( 942 × 945) / 3
LCM(942,945) = 890190 / 3
LCM(942,945) = 296730
(i) The LCM of 945 and 942 is associative
LCM of 942 and 945 = LCM of 945 and 942
1. What is the LCM of 942 and 945?
Answer: LCM of 942 and 945 is 296730.
2. What are the Factors of 942?
Answer: Factors of 942 are 1, 2, 3, 6, 157, 314, 471, 942. There are 8 integers that are factors of 942. The greatest factor of 942 is 942.
3. What are the Factors of 945?
Answer: Factors of 945 are 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945. There are 16 integers that are factors of 945. The greatest factor of 945 is 945.
4. How to Find the LCM of 942 and 945?
Answer:
Least Common Multiple of 942 and 945 = 296730
Step 1: Find the prime factorization of 942
942 = 2 x 3 x 157
Step 2: Find the prime factorization of 945
945 = 3 x 3 x 3 x 5 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 = 296730 = 2 x 3 x 3 x 3 x 5 x 7 x 157
Step 4: Therefore, the least common multiple of 942 and 945 is 296730.