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Q: What is the prime factorization to find the LCM of 4?

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Prime factorization.

2^4

2 x 2 = 4 7 2 x 2 x 5 = 20 2 x 2 x 5 x 7 = 140, the LCM

No number has that prime factorization since 4 isn't prime.

No, 4 is not prime.

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Prime factorization.

That depends on the value of A.

That's a lot of extra work for this problem but here goes. 3 is already prime so it doesn't really have a factor tree or prime factorization. The prime factorization of 4 is 2 x 2 which looks like this in a factor tree.42,23 and 4 have no common prime factors, so the LCM is their product, 12

2 x 2

2^4

The LCM of 2 and 4 is 4 The prime factorization of 2 is 1*2. The prime factorization of 4 is 2*2 While the number 2 is a factor for both numbers, it occurs two times for 4; Therefore, include 2 x 2 in the answer Therefore, LCM(2,4) = 2 x 2 = 4

You can use the numbers in common in the prime factorization to find the LCM (least common multiple of two numbers). Multiply all the prime factors together, but if the two numbers have a prime factor in common, only use that number once. Here are a few examples: Find the LCM of 40 and 35: The prime factorization of 40 is 2*2*2*5. The prime factorization of 35 is 5*7. The prime factorization both have a 5 in common, so you only need one five. The LCM then is 2*2*2*7*5 = 280. Find the LCM of 24 and 20: 24 = 2*2*2*3. 20 = 2*2*5. The prime factorization have two twos in common, so you only need one two from each pair. You will still need another 2 since the third 2 in the prime factorization of 24 does not have a pair in the factorization of 20. The LCM then is 2*2*2*3*5 = 120. Find the LCM of 15 and 4: 15 = 3*5 4 = 2*2 There are no matching pairs between the prime factorization, so find the LCM by multiplying all the numbers together: 2*2*3*5=60 Find the LCM of 60 and 100: 140 = 2*2*3*5 100 = 2*2*5*5 There are two pairs of 2s and a pair of 5. You can think of it like this: 140 = (2*2*5)*3 100 = (2*2*5)*5 The numbers in parentheses are pairs so you only need one of them. In this case, the LCM is (2*2*5)*3*5 = 300.

Prime factorization of each number is as follows: 29=29 (it's prime) 58=2*29 4=2^2 The LCM is 2^2*29 = 116.

2 x 2 = 4 7 2 x 2 x 5 = 20 2 x 2 x 5 x 7 = 140, the LCM

The prime factorization of 4 is 2 X 2, represented as 2^2. Prime factorization of 4 is 2 X 2.

Divide it by 2. 2 x 2 = 4

32 x 2Combine the factors.2 x 2 x 3 = 12, the LCM

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