The least common multiple of 10 and 20 is 40. 40 is the smallest number that is a multiple of both 10 and 20. To find the least common multiple of two numbers, you can list the multiples of each number and then find the smallest number that is a multiple of both numbers. For example, the multiples of 10 are 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100. The multiples of 20 are 20, 40, 60, 80, and 100. The least common multiple of 10 and 20 is 40 because it is the smallest number that is a multiple of both 10 and 20.
What is the greatest common factor of 10 and 20?
The greatest common factor of 10 and 20 is 10. This is because 10 is the largest number that both 10 and 20 can be divided by evenly. So, 10 is the greatest common factor of 10 and 20.
How do you find the least common multiple of two numbers?
The least common multiple (LCM) of two numbers is the smallest number that is a multiple of both of the numbers. To find the LCM of two numbers, you can use the prime factorization method. This method involves writing out the prime factorization of each number and then finding the product of the factors that are common to both numbers.
For example, to find the LCM of 12 and 15, you would start by writing out the prime factorizations of each number:
12: 2 × 2 × 3 15: 3 × 5
The LCM of 12 and 15 is the product of the common factors, which in this case is 3 × 5, or 15.
You can also use the greatest common divisor (GCD) to find the LCM of two numbers. The GCD is the largest number that divides evenly into both numbers. To find the LCM using the GCD, you would divide the product of the two numbers by the GCD.
For example, the LCM of 12 and 15 can also be found by taking the product of the two numbers (12 × 15), and then dividing by the GCD of the two numbers (3). 12 × 15 = 180, and 180 ÷ 3 = 60. Therefore, the LCM of 12 and 15 is 60.
What is the LCM of 10 and 20?
The least common multiple (LCM) of 10 and 20 is 60.
60 is the smallest number that is divisible by both 10 and 20.
To find the LCM of 10 and 20, we can list the multiples of each number until we find a common multiple:
Multiples of 10: 10, 20, 30, 40, 50, 60 Multiples of 20: 20, 40, 60, 80, 100
As we can see, 60 is the first common multiple of 10 and 20.
What's the smallest number that is a multiple of both 10 and 20?
What's the smallest number that is a multiple of both 10 and 20?
This is a tricky question, because there are multiple ways to interpret it. The simplest answer is that the smallest number that is a multiple of both 10 and 20 is 20. However, if we take a closer look at the question, we can see that there are other possible answers.
For example, we could interpret the question as asking for the smallest number that is a multiple of 10 and also a multiple of 20. In this case, the answer would be 30, because 30 is the smallest number that is a multiple of both 10 and 20.
Alternatively, we could interpret the question as asking for the smallest number that is a multiple of 10 or a multiple of 20. In this case, the answer would be 10, because 10 is the smallest number that is a multiple of 10 or 20 (or both).
So, the answer to the question "What's the smallest number that is a multiple of both 10 and 20?" depends on how we interpret the question. If we interpret it as asking for the smallest number that is a multiple of 10 and also a multiple of 20, then the answer is 30. However, if we interpret the question as asking for the smallest number that is a multiple of 10 or a multiple of 20, then the answer is 10.
Frequently Asked Questions
What are the first 20 multiples of 1 through 20?
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
How many multiples of a number are there?
There are an infinite number of multiples of any given number.
What are the multiples of 10 and 21?
The multiples of 10 are 10, 20, 30, 40, 50 and 60. The multiples of 21 are 21, 42, 63, 84 and 105.
What is the full form of LCM?
The full form of LCM is "Least Common Multiple."
What is the least common multiple (lcm) of 4 and 6?
12 is the lcm of 4 and 6.
Sources
- https://getcalc.com/lcm-solvedexample20.htm
- https://rikeinvest.com/en/math/sansu/kobaisu/sk1and20/
- https://www.cuemath.com/numbers/lcm-of-two-numbers/
- https://stackoverflow.com/questions/7968364/how-to-find-least-common-multiple-lcm-for-two-numbers
- https://lifetrrends.com/others/questions/how-to-find-the-least-common-multiple-(lcm)-of-two-numbers/
- https://studystoph.com/science/question519164711
- https://heybluebird.com/how-to-find-the-least-common-multiple-of-two-numbers.html
- https://answers.everydaycalculation.com/lcm/10-20
- https://lcmgcf.com/lcm-of-20-5-10-4/
- https://onlinecalculator.guru/lcmgcf/gcf-of-10-20/
- https://www.onlinemath4all.com/how-to-find-least-common-multiple-of-two-numbers.html
- https://www.cuemath.com/numbers/gcf-of-10-and-20/
- https://hellothinkster.com/math-questions/lcm/lcm-of-10-and-20
- https://math.answers.com/basic-math/What_is_the_least_common_multiple_of_8_10_and_20
- https://www.gcflcm.com/gcf-of-20-and-10
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