Common questions

What is the LCM and GCF of 30 and 45?

by Bobbi Devlin

What is the LCM and GCF of 30 and 45?

Example 2: Find the GCF of 30 and 45, if their LCM is 90. Therefore, the greatest common factor of 30 and 45 is 15. Example 3: For two numbers, GCF = 15 and LCM = 90. If one number is 45, find the other number.

Which of the following is factor of 20 and 22?

The factors of 20 and 22 are 1, 2, 4, 5, 10, 20 and 1, 2, 11, 22 respectively.

What is the LCM of 30 45 and 60?

180
Answer: LCM of 30, 45, and 60 is 180.

What is the LCM of 45?

Answer: LCM of 45 and 60 is 180. Explanation: The LCM of two non-zero integers, x(45) and y(60), is the smallest positive integer m(180) that is divisible by both x(45) and y(60) without any remainder.

What is the factor of 45 and 30?

The factors of 45 and 30 are 1, 3, 5, 9, 15, 45 and 1, 2, 3, 5, 6, 10, 15, 30 respectively. There are 3 commonly used methods to find the HCF of 45 and 30 – Euclidean algorithm, prime factorization, and long division.

What is the lowest common multiple of 13 and 31?

Least common multiple (LCM)

  • Step by Step Solution. Least Common Multiple is : 403. Calculate Least Common Multiple for : Factorize of the above numbers : 13 = 13. 31 = 31. Build a prime factors table. Number of times each prime factor. appears in the factorization of : Prime.
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What is the lowest common multiple of 16 and 60?

240
Answer: LCM of 16 and 60 is 240.

How do you find the LCM of 45?

The LCM of 45 and 60 is 180. To find the least common multiple of 45 and 60, we need to find the multiples of 45 and 60 (multiples of 45 = 45, 90, 135, 180; multiples of 60 = 60, 120, 180, 240) and choose the smallest multiple that is exactly divisible by 45 and 60, i.e., 180.

What is the LCM of 30 40 and 45?

Calculate the LCM The least common multiple of 30, 45 and 40 is 360.

What is the least common multiple of 45 and 60?

What is the LCM of 45 and 60? Answer: LCM of 45 and 60 is 180.

What is the smallest common multiple of 30 45 and 60 between 200 and 400?

According to condition, smallest common multiple lies between 200 and 400. Hence, 120 is the correct answer.

How do you calculate least common multiple?

One way to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.

How to find least common multiple?

First,write the numbers,separated by commas

  • Now divide the numbers,with the smallest prime number.
  • If any number is not divisible,then write down that number and proceed further
  • Keep on dividing the row of numbers by prime numbers,unless we get the results as 1 in the complete row
  • Now LCM of the numbers will equal to the product of all the prime numbers we obtained in division method

    • How to figure out LCM?

    List all the prime numbers found, as many times as they occur most often for any one given number. Multiply the list of prime factors together to find the LCM . The LCM (a,b) is calculated by finding the prime factorization of both a and b. Use the same process for the LCM of more than 2 numbers.

    How do you calculate greatest common factor?

    To find the greatest common factor (GCF) between numbers, take each number and write it’s prime factorization. Then, identify the factors common to each number and multiply those common factors together.