what is the least common multiple of 4 and 5

LCM of 4 and 5LCM of 4 and 5 is the smallest of all common multiples of 4 and 5. The first multiples of 4 and 5 are (4, 8, 12, 16,…) and (5.) , 10, 15, 20,…) respectively. There are 3 commonly used methods to find the LCMs of 4 and 5 – by division, by prime factors, and by enumerating multiples. 1. LCM of 4 and 5 2. List of methods 3. Solved examples 4. FAQAnswer: The LCM of 4 and 5 is 20. Read: what is the most common multiple of 4 and 5 Explanation: Read more: What color led lights help you sleep ) without any residual. Let’s see the different methods to find the LCM of 4 and 5.

  • According to the division method
  • By multiples of the list
  • According to the prime factorization method

LCM of 4 and 5 by Division Method

LCM of 4 and 5 by Division MethodTo calculate the LCM of 4 and 5 using the division method, we divide the numbers (4, 5) by their prime factors (preferably common). The product of these divisors for the LCM is 4 and 5.

  • Step 1: Find the smallest prime that is a factor of at least one of the numbers, 4 and 5. Write this prime (2) to the left of the given numbers (4 and 5), separated by a ladder arrangement. .
  • Step 2: If a given number (4, 5) is a multiple of 2 then divide it by 2 and write the quotient below. Bring down any number that is not divisible by primes.
  • Step 3: Continue the steps until there are only 1s left in the last row.

The LCM of 4 and 5 is the product of all the primes to the left, i.e. LCM (4, 5) by division = 2 × 2 × 5 = 20.

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LCM of 4 and 5 in List Multiples

LCM of 4 and 5 by List Multiples MethodRead more: what year does the encanto take place To calculate the LCM of 4 and 5 by listing the common multiples we can follow the steps below:

  • Step 1: List some multiples of 4 (4, 8, 12, 16,…) and 5 (5, 10, 15, 20,…)
  • Step 2: The common multiples from the multiples of 4 and 5 are 20, 40,. . .
  • Step 3: The least common multiple of 4 and 5 is 20.

∴ Least common multiple of 4 and 5 = 20.

LCM of 4 and 5 in prime factors

The prime factors of 4 and 5 are (2 × 2) = 22 and (5) = 51, respectively. The LCM of 4 and 5 can be obtained by multiplying the prime factors raised to the highest power. of them, i.e. 22 × 51 = 20. Therefore, the LCM of 4 and 5 by prime factors is 20.☛ Also check:Read more: what is the square root of 66 | Top Q&A

  • LCM of 15 and 30 – 30
  • LCM of 3 and 9 – 9
  • LCM of 21 and 27 – 189
  • LCM of 72, 126 and 168 – 504
  • LCM of 3, 4, 5 and 6 – 60
  • LCM of 36, 42 and 72 – 504
  • LCM of 10 and 40 – 40

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