Math Tutor Explains: What are the Factors of 1995?

As your math tutor, I’m here to guide you through the different types of factors of 1995. Understanding factors is key to mastering multiplication, division, and prime numbers. Here’s a breakdown:

• Factors of 1995: 1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995

• Sum of Factors of 1995: 3840

• Negative Factors of 1995: -1, -3, -5, -7, -15, -19, -21, -35, -57, -95, -105, -133, -285, -399, -665, -1995

• Prime Factors of 1995: 3, 5, 7, 19

• Prime Factorization of 1995: 3^1 × 5^1 × 7^1 × 19^1

There are two main ways a math tutor would explain how to find the factors of 1995: using factor pairs and prime factorization. Let’s explore both!

As your math tutor, I’m here to help you break down factor pairs of 1995 step by step!

Factor pairs of 1995 are any two numbers that, when multiplied together, equal 1995. The question to ask is “what two numbers multiplied together equal 1995?” Every factor can be paired with another factor, and multiplying the two will result in 1995.

To find the factor pairs of 1995, follow these steps:

Step 1:

Find the smallest prime number that is larger than 1, and is a factor of 1995. 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 3.

Step 2:

Divide 1995 by the smallest prime factor, in this case, 3:

1995 ÷ 3 = 665

3 and 665 will make a new factor pair.

Step 3:

Repeat Steps 1 and 2, using 665 as the new focus. Find the smallest prime factor that isn’t 1, and divide 665 by that number. In this case, 5 is the new smallest prime factor:

665 ÷ 5 = 133

Remember that this new factor pair is only for the factors of 665, not 1995. So, to finish the factor pair for 1995, you’d multiply 3 and 5 before pairing with 133:

3 x 5 = 15

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 1995:

(1, 1995), (3, 665), (5, 399), (7, 285), (15, 133), (19, 105), (21, 95), (35, 57)

So, to list all the factors of 1995: 1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995

The negative factors of 1995 would be: -1, -3, -5, -7, -15, -19, -21, -35, -57, -95, -105, -133, -285, -399, -665, -1995

Now you’ve got it! A math tutor would always encourage you to practice with different numbers to reinforce your understanding of factor pairs. Try another one!

To find the prime factorization of 1995, we break it down step by step until only prime factors remain. Then, we express 1995 as a product of these prime factors multiplied together. Let’s go through the process and simplify it like a math tutor would!

The process of finding the prime factorization of 1995 only has a few differences from the above method of finding the factors of 1995. 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 1995:

Step 1:

Find the smallest prime number that is larger than 1, and is a factor of 1995. 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 3.

Step 2:

Divide 1995 by the smallest prime factor, in this case, 3

1995 ÷ 3 = 665

3 becomes the first number in our prime factorization.

Step 3:

Repeat Steps 1 and 2, using 665 as the new focus. Find the smallest prime factor that isn’t 1, and divide 665 by that number. The smallest prime factor you pick for 665 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 1995 are: 3, 5, 7, 19

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

Factors of 108 - The factors of 108 are 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108

Factors of 72 - The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Factors of 54 - The factors of 54 are 1, 2, 3, 6, 9, 18, 27, 54

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