Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1457 and 1461 the smallest integer that is 2128677 that is divisible by both numbers.
Least Common Multiple (LCM) of 1457 and 1461 is 2128677.
LCM(1457,1461) = 2128677
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 1457 and 1461. First we will calculate the prime factors of 1457 and 1461.
Prime Factorization of 1457
31 | 1457 |
47 | 47 |
1 |
Prime factors of 1457 are 31,47. Prime factorization of 1457 in exponential form is:
1457 = 311×471
Prime Factorization of 1461
3 | 1461 |
487 | 487 |
1 |
Prime factors of 1461 are 3,487. Prime factorization of 1461 in exponential form is:
1461 = 31×4871
Now multiplying the highest exponent prime factors to calculate the LCM of 1457 and 1461.
LCM(1457,1461) = 31×311×471×4871
LCM(1457,1461) = 2128677
Factors of 1457
List of positive integer factors of 1457 that divides 1457 without a remainder.
1, 31, 47, 1457
Factors of 1461
List of positive integer factors of 1461 that divides 1461 without a remainder.
1, 3, 487, 1461
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1457 and 1461, than apply into the LCM equation.
GCF(1457,1461) = 1
LCM(1457,1461) = ( 1457 × 1461) / 1
LCM(1457,1461) = 2128677 / 1
LCM(1457,1461) = 2128677
(i) The LCM of 1461 and 1457 is associative
LCM of 1457 and 1461 = LCM of 1461 and 1457
1. What is the LCM of 1457 and 1461?
Answer: LCM of 1457 and 1461 is 2128677.
2. What are the Factors of 1457?
Answer: Factors of 1457 are 1, 31, 47, 1457. There are 4 integers that are factors of 1457. The greatest factor of 1457 is 1457.
3. What are the Factors of 1461?
Answer: Factors of 1461 are 1, 3, 487, 1461. There are 4 integers that are factors of 1461. The greatest factor of 1461 is 1461.
4. How to Find the LCM of 1457 and 1461?
Answer:
Least Common Multiple of 1457 and 1461 = 2128677
Step 1: Find the prime factorization of 1457
1457 = 31 x 47
Step 2: Find the prime factorization of 1461
1461 = 3 x 487
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2128677 = 3 x 31 x 47 x 487
Step 4: Therefore, the least common multiple of 1457 and 1461 is 2128677.