As your math tutor, I’m here to help you break down factor pairs of 330 step by step!
Factor pairs of 330 are any two numbers that, when multiplied together, equal 330. The question to ask is “what two numbers multiplied together equal 330?” Every factor can be paired with another factor, and multiplying the two will result in 330.
To find the factor pairs of 330, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 330. 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 330 by the smallest prime factor, in this case, 2:
330 ÷ 2 = 165
2 and 165 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 165 as the new focus. Find the smallest prime factor that isn’t 1, and divide 165 by that number. In this case, 3 is the new smallest prime factor:
165 ÷ 3 = 55
Remember that this new factor pair is only for the factors of 165, not 330. So, to finish the factor pair for 330, you’d multiply 2 and 3 before pairing with 55:
2 x 3 = 6
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 330:
(1, 330), (2, 165), (3, 110), (5, 66), (6, 55), (10, 33), (11, 30), (15, 22)
So, to list all the factors of 330: 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330
The negative factors of 330 would be: -1, -2, -3, -5, -6, -10, -11, -15, -22, -30, -33, -55, -66, -110, -165, -330
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!