Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 553 and 556 the smallest integer that is 307468 that is divisible by both numbers.
Least Common Multiple (LCM) of 553 and 556 is 307468.
LCM(553,556) = 307468
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 553 and 556. First we will calculate the prime factors of 553 and 556.
Prime Factorization of 553
7 | 553 |
79 | 79 |
1 |
Prime factors of 553 are 7,79. Prime factorization of 553 in exponential form is:
553 = 71×791
Prime Factorization of 556
2 | 556 |
2 | 278 |
139 | 139 |
1 |
Prime factors of 556 are 2,139. Prime factorization of 556 in exponential form is:
556 = 22×1391
Now multiplying the highest exponent prime factors to calculate the LCM of 553 and 556.
LCM(553,556) = 22×71×791×1391
LCM(553,556) = 307468
Factors of 553
List of positive integer factors of 553 that divides 553 without a remainder.
1, 7, 79, 553
Factors of 556
List of positive integer factors of 556 that divides 556 without a remainder.
1, 2, 4, 139, 278, 556
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 553 and 556, than apply into the LCM equation.
GCF(553,556) = 1
LCM(553,556) = ( 553 × 556) / 1
LCM(553,556) = 307468 / 1
LCM(553,556) = 307468
(i) The LCM of 556 and 553 is associative
LCM of 553 and 556 = LCM of 556 and 553
1. What is the LCM of 553 and 556?
Answer: LCM of 553 and 556 is 307468.
2. What are the Factors of 553?
Answer: Factors of 553 are 1, 7, 79, 553. There are 4 integers that are factors of 553. The greatest factor of 553 is 553.
3. What are the Factors of 556?
Answer: Factors of 556 are 1, 2, 4, 139, 278, 556. There are 6 integers that are factors of 556. The greatest factor of 556 is 556.
4. How to Find the LCM of 553 and 556?
Answer:
Least Common Multiple of 553 and 556 = 307468
Step 1: Find the prime factorization of 553
553 = 7 x 79
Step 2: Find the prime factorization of 556
556 = 2 x 2 x 139
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 307468 = 2 x 2 x 7 x 79 x 139
Step 4: Therefore, the least common multiple of 553 and 556 is 307468.