Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1397 and 1401 the smallest integer that is 1957197 that is divisible by both numbers.
Least Common Multiple (LCM) of 1397 and 1401 is 1957197.
LCM(1397,1401) = 1957197
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 1397 and 1401. First we will calculate the prime factors of 1397 and 1401.
Prime Factorization of 1397
11 | 1397 |
127 | 127 |
1 |
Prime factors of 1397 are 11,127. Prime factorization of 1397 in exponential form is:
1397 = 111×1271
Prime Factorization of 1401
3 | 1401 |
467 | 467 |
1 |
Prime factors of 1401 are 3,467. Prime factorization of 1401 in exponential form is:
1401 = 31×4671
Now multiplying the highest exponent prime factors to calculate the LCM of 1397 and 1401.
LCM(1397,1401) = 31×111×1271×4671
LCM(1397,1401) = 1957197
Factors of 1397
List of positive integer factors of 1397 that divides 1397 without a remainder.
1, 11, 127, 1397
Factors of 1401
List of positive integer factors of 1401 that divides 1401 without a remainder.
1, 3, 467, 1401
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1397 and 1401, than apply into the LCM equation.
GCF(1397,1401) = 1
LCM(1397,1401) = ( 1397 × 1401) / 1
LCM(1397,1401) = 1957197 / 1
LCM(1397,1401) = 1957197
(i) The LCM of 1401 and 1397 is associative
LCM of 1397 and 1401 = LCM of 1401 and 1397
1. What is the LCM of 1397 and 1401?
Answer: LCM of 1397 and 1401 is 1957197.
2. What are the Factors of 1397?
Answer: Factors of 1397 are 1, 11, 127, 1397. There are 4 integers that are factors of 1397. The greatest factor of 1397 is 1397.
3. What are the Factors of 1401?
Answer: Factors of 1401 are 1, 3, 467, 1401. There are 4 integers that are factors of 1401. The greatest factor of 1401 is 1401.
4. How to Find the LCM of 1397 and 1401?
Answer:
Least Common Multiple of 1397 and 1401 = 1957197
Step 1: Find the prime factorization of 1397
1397 = 11 x 127
Step 2: Find the prime factorization of 1401
1401 = 3 x 467
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1957197 = 3 x 11 x 127 x 467
Step 4: Therefore, the least common multiple of 1397 and 1401 is 1957197.