what is the least common multiple of 7 and 9

Video Least Common Multiple of 7 and 9LCM of 7 and 9LCM of 7 and 9 is the smallest of all common multiples of 7 and 9. The first multiples of 7 and 9 are (7, 14, 21, 28) , 35, 42,..) and (9, 18, 27, 36, 45,…). There are 3 commonly used methods to find the LCM of 7 and 9 – by enumerating the multiples, by division and by prime factors. 1. LCM of 7 and 9 2. List of methods 3. Solved examples 4. FAQAnswer: The LCM of 7 and 9 is 63. Read: what is the most common multiple of 7 and 9 Explanation: Read more: what is facebook comment rating | Q&A about the LCM of two integers other than 0, x(7) and y(9), which is the smallest positive integer m(63) that is divisible by both x(7) and y(9) with no remainder any. different methods to find the LCM of 7 and 9.

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

LCM of 7 and 9 in prime factors

The prime factors of 7 and 9 are (7) = 71 and (3 × 3) = 32, respectively. The LCMs of 7 and 9 can be obtained by multiplying prime factors raised to the highest power. their respective equivalents, i.e. 32 × 71 = 63. Therefore, the LCM of 7 and 9 in prime factors is 63.

LCM of 7 and 9 in List Multiples

LCM of 7 and 9 by List Multiple MethodTo calculate the LCM of 7 and 9 by enumerating common multiples, we can follow these steps:

  • Step 1: List some multiples of 7 (7, 14, 21, 28, 35, 42,…) and 9 (9, 18, 27, 36, 45,…)
  • Step 2: The common multiples from multiples of 7 and 9 are 63, 126, . . .
  • Step 3: The least common multiple of 7 and 9 is 63.
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Read more: what is the square root of 26 | Top Q&A∴ Least common multiple of 7 and 9 = 63.

LCM of 7 and 9 by Division Method

LCM of 7 and 9 by Division MethodTo calculate the LCM of 7 and 9 using the division method, we divide the numbers (7, 9) by their prime factors (preferably regular). The product of these divisors for the LCM is 7 and 9.

  • Step 1: Find the smallest prime number that is a factor of at least one of the numbers, 7 and 9. Write this prime number (3) to the left of the given numbers (7 and 9), separated by a ladder arrangement. .
  • Step 2: If a given number (7, 9) is a multiple of 3 then divide it by 3 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 7 and 9 is the product of all the primes to the left, i.e. LCM (7, 9) by division = 3 × 3 × 7 = 63.☛ Also check:Read more: What is Red Notice

  • LCM of 3, 7 and 10 – 210
  • LCM of 2, 4 and 7 – 28
  • LCM of 21 and 24 – 168
  • LCM of 30 and 35 – 210
  • LCM of 25 and 16-400
  • LCM of 6 and 14 – 42
  • LCM 18 and 27 – 54

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