What are the Factors of 64?

Factors of 64 are any integer that can be multiplied by another integer to make exactly 64. In other words, finding the factors of 64 is like breaking down the number 64 into all the smaller pieces that can be used in a multiplication problem to equal 64.

Factors of 64

Methods

What are the Factors of 64?

The following are the different types of factors of 64:

• Factors of 64: 1, 2, 4, 8, 16, 32, 64

• Sum of Factors of 64: 127

• Negative Factors of 64: -1, -2, -4, -8, -16, -32, -64

• Prime Factors of 64: 2

• Prime Factorization of 64: 2^6

There are two ways to find the factors of 64: using factor pairs, and using prime factorization.

The Factor Pairs of 64

Factor pairs of 64 are any two numbers that, when multiplied together, equal 64. The question to ask is “what two numbers multiplied together equal 64?” Every factor can be paired with another factor, and multiplying the two will result in 64.

To find the factor pairs of 64, follow these steps:

Step 1:

Find the smallest prime number that is larger than 1, and is a factor of 64. For reference, the first prime numbers to check are 2, 3, 5, 7, 11, and 13. In this case, the smallest factor that’s a prime number larger than 1 is 2.

Step 2:

Divide 64 by the smallest prime factor, in this case, 2:

64 ÷ 2 = 32

2 and 32 will make a new factor pair.

Step 3:

Repeat Steps 1 and 2, using 32 as the new focus. Find the smallest prime factor that isn’t 1, and divide 32 by that number. In this case, 2 is the new smallest prime factor:

32 ÷ 2 = 16

Remember that this new factor pair is only for the factors of 32, not 64. So, to finish the factor pair for 64, you’d multiply 2 and 2 before pairing with 16:

2 x 2 = 4

Step 4:

Repeat this process until there are no longer any prime factors larger than one to divide by. At the end, you should have the full list of factor pairs.

Here are all the factor pairs for 64:

(1, 64), (2, 32), (4, 16), (8, 8)

So, to list all the factors of 64: 1, 2, 4, 8, 16, 32, 64

The negative factors of 64 would be: -1, -2, -4, -8, -16, -32, -64

Prime Factorization of 64

To find the Prime factorization of 64, we break down all the factors of 64 until we are left with only prime factors. We then express n as a product of multiplying the prime factors together.

The process of finding the prime factorization of 64 only has a few differences from the above method of finding the factors of 64. Instead of ensuring we find the right factor pairs, we continue to factor each step until we are left with only the list of smallest prime factors greater than 1.

Here are the steps for finding the prime factorization of 64:

Step 1:

Find the smallest prime number that is larger than 1, and is a factor of 64. For reference, the first prime numbers to check are 2, 3, 5, 7, 11, and 13. In this case, the smallest factor that’s a prime number larger than 1 is 2.

Step 2:

Divide 64 by the smallest prime factor, in this case, 2

64 ÷ 2 = 32

2 becomes the first number in our prime factorization.

Step 3:

Repeat Steps 1 and 2, using 32 as the new focus. Find the smallest prime factor that isn’t 1, and divide 32 by that number. The smallest prime factor you pick for 32 will then be the next prime factor. If you keep repeating this process, there will be a point where there will be no more prime factors left, which leaves you with the prime factors for prime factorization.

So, the unique prime factors of 64 are: 2

Find the Factors of Other Numbers

Practice your factoring skills by exploring how to factor other numbers, like the ones below:

Factors of 71 - The factors of 71 are 1, 71

Factors of 147 - The factors of 147 are 1, 3, 7, 21, 49, 147

Factors of 7 - The factors of 7 are 1, 7

Factors of 6 - The factors of 6 are 1, 2, 3, 6

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