Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 632 and 640 the smallest integer that is 50560 that is divisible by both numbers.
Least Common Multiple (LCM) of 632 and 640 is 50560.
LCM(632,640) = 50560
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 632 and 640. First we will calculate the prime factors of 632 and 640.
Prime Factorization of 632
2 | 632 |
2 | 316 |
2 | 158 |
79 | 79 |
1 |
Prime factors of 632 are 2,79. Prime factorization of 632 in exponential form is:
632 = 23×791
Prime Factorization of 640
2 | 640 |
2 | 320 |
2 | 160 |
2 | 80 |
2 | 40 |
2 | 20 |
2 | 10 |
5 | 5 |
1 |
Prime factors of 640 are 2,5. Prime factorization of 640 in exponential form is:
640 = 27×51
Now multiplying the highest exponent prime factors to calculate the LCM of 632 and 640.
LCM(632,640) = 27×51×791
LCM(632,640) = 50560
Factors of 632
List of positive integer factors of 632 that divides 632 without a remainder.
1, 2, 4, 8, 79, 158, 316, 632
Factors of 640
List of positive integer factors of 640 that divides 640 without a remainder.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 632 and 640, than apply into the LCM equation.
GCF(632,640) = 8
LCM(632,640) = ( 632 × 640) / 8
LCM(632,640) = 404480 / 8
LCM(632,640) = 50560
(i) The LCM of 640 and 632 is associative
LCM of 632 and 640 = LCM of 640 and 632
1. What is the LCM of 632 and 640?
Answer: LCM of 632 and 640 is 50560.
2. What are the Factors of 632?
Answer: Factors of 632 are 1, 2, 4, 8, 79, 158, 316, 632. There are 8 integers that are factors of 632. The greatest factor of 632 is 632.
3. What are the Factors of 640?
Answer: Factors of 640 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640. There are 16 integers that are factors of 640. The greatest factor of 640 is 640.
4. How to Find the LCM of 632 and 640?
Answer:
Least Common Multiple of 632 and 640 = 50560
Step 1: Find the prime factorization of 632
632 = 2 x 2 x 2 x 79
Step 2: Find the prime factorization of 640
640 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 50560 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 79
Step 4: Therefore, the least common multiple of 632 and 640 is 50560.