Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1770 and 1772 the smallest integer that is 1568220 that is divisible by both numbers.
Least Common Multiple (LCM) of 1770 and 1772 is 1568220.
LCM(1770,1772) = 1568220
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 1770 and 1772. First we will calculate the prime factors of 1770 and 1772.
Prime Factorization of 1770
2 | 1770 |
3 | 885 |
5 | 295 |
59 | 59 |
1 |
Prime factors of 1770 are 2, 3, 5,59. Prime factorization of 1770 in exponential form is:
1770 = 21×31×51×591
Prime Factorization of 1772
2 | 1772 |
2 | 886 |
443 | 443 |
1 |
Prime factors of 1772 are 2,443. Prime factorization of 1772 in exponential form is:
1772 = 22×4431
Now multiplying the highest exponent prime factors to calculate the LCM of 1770 and 1772.
LCM(1770,1772) = 22×31×51×591×4431
LCM(1770,1772) = 1568220
Factors of 1770
List of positive integer factors of 1770 that divides 1770 without a remainder.
1, 2, 3, 5, 6, 10, 15, 30, 59, 118, 177, 295, 354, 590, 885, 1770
Factors of 1772
List of positive integer factors of 1772 that divides 1772 without a remainder.
1, 2, 4, 443, 886, 1772
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1770 and 1772, than apply into the LCM equation.
GCF(1770,1772) = 2
LCM(1770,1772) = ( 1770 × 1772) / 2
LCM(1770,1772) = 3136440 / 2
LCM(1770,1772) = 1568220
(i) The LCM of 1772 and 1770 is associative
LCM of 1770 and 1772 = LCM of 1772 and 1770
1. What is the LCM of 1770 and 1772?
Answer: LCM of 1770 and 1772 is 1568220.
2. What are the Factors of 1770?
Answer: Factors of 1770 are 1, 2, 3, 5, 6, 10, 15, 30, 59, 118, 177, 295, 354, 590, 885, 1770. There are 16 integers that are factors of 1770. The greatest factor of 1770 is 1770.
3. What are the Factors of 1772?
Answer: Factors of 1772 are 1, 2, 4, 443, 886, 1772. There are 6 integers that are factors of 1772. The greatest factor of 1772 is 1772.
4. How to Find the LCM of 1770 and 1772?
Answer:
Least Common Multiple of 1770 and 1772 = 1568220
Step 1: Find the prime factorization of 1770
1770 = 2 x 3 x 5 x 59
Step 2: Find the prime factorization of 1772
1772 = 2 x 2 x 443
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1568220 = 2 x 2 x 3 x 5 x 59 x 443
Step 4: Therefore, the least common multiple of 1770 and 1772 is 1568220.