Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1941 and 1945 the smallest integer that is 3775245 that is divisible by both numbers.
Least Common Multiple (LCM) of 1941 and 1945 is 3775245.
LCM(1941,1945) = 3775245
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 1941 and 1945. First we will calculate the prime factors of 1941 and 1945.
Prime Factorization of 1941
3 | 1941 |
647 | 647 |
1 |
Prime factors of 1941 are 3,647. Prime factorization of 1941 in exponential form is:
1941 = 31×6471
Prime Factorization of 1945
5 | 1945 |
389 | 389 |
1 |
Prime factors of 1945 are 5,389. Prime factorization of 1945 in exponential form is:
1945 = 51×3891
Now multiplying the highest exponent prime factors to calculate the LCM of 1941 and 1945.
LCM(1941,1945) = 31×51×3891×6471
LCM(1941,1945) = 3775245
Factors of 1941
List of positive integer factors of 1941 that divides 1941 without a remainder.
1, 3, 647, 1941
Factors of 1945
List of positive integer factors of 1945 that divides 1945 without a remainder.
1, 5, 389, 1945
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1941 and 1945, than apply into the LCM equation.
GCF(1941,1945) = 1
LCM(1941,1945) = ( 1941 × 1945) / 1
LCM(1941,1945) = 3775245 / 1
LCM(1941,1945) = 3775245
(i) The LCM of 1945 and 1941 is associative
LCM of 1941 and 1945 = LCM of 1945 and 1941
1. What is the LCM of 1941 and 1945?
Answer: LCM of 1941 and 1945 is 3775245.
2. What are the Factors of 1941?
Answer: Factors of 1941 are 1, 3, 647, 1941. There are 4 integers that are factors of 1941. The greatest factor of 1941 is 1941.
3. What are the Factors of 1945?
Answer: Factors of 1945 are 1, 5, 389, 1945. There are 4 integers that are factors of 1945. The greatest factor of 1945 is 1945.
4. How to Find the LCM of 1941 and 1945?
Answer:
Least Common Multiple of 1941 and 1945 = 3775245
Step 1: Find the prime factorization of 1941
1941 = 3 x 647
Step 2: Find the prime factorization of 1945
1945 = 5 x 389
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3775245 = 3 x 5 x 389 x 647
Step 4: Therefore, the least common multiple of 1941 and 1945 is 3775245.