Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 722 and 724 the smallest integer that is 261364 that is divisible by both numbers.
Least Common Multiple (LCM) of 722 and 724 is 261364.
LCM(722,724) = 261364
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 722 and 724. First we will calculate the prime factors of 722 and 724.
Prime Factorization of 722
2 | 722 |
19 | 361 |
19 | 19 |
1 |
Prime factors of 722 are 2,19. Prime factorization of 722 in exponential form is:
722 = 21×192
Prime Factorization of 724
2 | 724 |
2 | 362 |
181 | 181 |
1 |
Prime factors of 724 are 2,181. Prime factorization of 724 in exponential form is:
724 = 22×1811
Now multiplying the highest exponent prime factors to calculate the LCM of 722 and 724.
LCM(722,724) = 22×192×1811
LCM(722,724) = 261364
Factors of 722
List of positive integer factors of 722 that divides 722 without a remainder.
1, 2, 19, 38, 361, 722
Factors of 724
List of positive integer factors of 724 that divides 724 without a remainder.
1, 2, 4, 181, 362, 724
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 722 and 724, than apply into the LCM equation.
GCF(722,724) = 2
LCM(722,724) = ( 722 × 724) / 2
LCM(722,724) = 522728 / 2
LCM(722,724) = 261364
(i) The LCM of 724 and 722 is associative
LCM of 722 and 724 = LCM of 724 and 722
1. What is the LCM of 722 and 724?
Answer: LCM of 722 and 724 is 261364.
2. What are the Factors of 722?
Answer: Factors of 722 are 1, 2, 19, 38, 361, 722. There are 6 integers that are factors of 722. The greatest factor of 722 is 722.
3. What are the Factors of 724?
Answer: Factors of 724 are 1, 2, 4, 181, 362, 724. There are 6 integers that are factors of 724. The greatest factor of 724 is 724.
4. How to Find the LCM of 722 and 724?
Answer:
Least Common Multiple of 722 and 724 = 261364
Step 1: Find the prime factorization of 722
722 = 2 x 19 x 19
Step 2: Find the prime factorization of 724
724 = 2 x 2 x 181
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 261364 = 2 x 2 x 19 x 19 x 181
Step 4: Therefore, the least common multiple of 722 and 724 is 261364.