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 725 the smallest integer that is 523450 that is divisible by both numbers.
Least Common Multiple (LCM) of 722 and 725 is 523450.
LCM(722,725) = 523450
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 725. First we will calculate the prime factors of 722 and 725.
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 725
5 | 725 |
5 | 145 |
29 | 29 |
1 |
Prime factors of 725 are 5,29. Prime factorization of 725 in exponential form is:
725 = 52×291
Now multiplying the highest exponent prime factors to calculate the LCM of 722 and 725.
LCM(722,725) = 21×52×192×291
LCM(722,725) = 523450
Factors of 722
List of positive integer factors of 722 that divides 722 without a remainder.
1, 2, 19, 38, 361, 722
Factors of 725
List of positive integer factors of 725 that divides 725 without a remainder.
1, 5, 25, 29, 145, 725
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 722 and 725, than apply into the LCM equation.
GCF(722,725) = 1
LCM(722,725) = ( 722 × 725) / 1
LCM(722,725) = 523450 / 1
LCM(722,725) = 523450
(i) The LCM of 725 and 722 is associative
LCM of 722 and 725 = LCM of 725 and 722
1. What is the LCM of 722 and 725?
Answer: LCM of 722 and 725 is 523450.
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 725?
Answer: Factors of 725 are 1, 5, 25, 29, 145, 725. There are 6 integers that are factors of 725. The greatest factor of 725 is 725.
4. How to Find the LCM of 722 and 725?
Answer:
Least Common Multiple of 722 and 725 = 523450
Step 1: Find the prime factorization of 722
722 = 2 x 19 x 19
Step 2: Find the prime factorization of 725
725 = 5 x 5 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 523450 = 2 x 5 x 5 x 19 x 19 x 29
Step 4: Therefore, the least common multiple of 722 and 725 is 523450.