As your math tutor, I’m here to help you break down factor pairs of 1331 step by step!
Factor pairs of 1331 are any two numbers that, when multiplied together, equal 1331. The question to ask is “what two numbers multiplied together equal 1331?” Every factor can be paired with another factor, and multiplying the two will result in 1331.
To find the factor pairs of 1331, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 1331. 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 11.
Step 2:
Divide 1331 by the smallest prime factor, in this case, 11:
1331 ÷ 11 = 121
11 and 121 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 121 as the new focus. Find the smallest prime factor that isn’t 1, and divide 121 by that number. In this case, 11 is the new smallest prime factor:
121 ÷ 11 = 11
Remember that this new factor pair is only for the factors of 121, not 1331. So, to finish the factor pair for 1331, you’d multiply 11 and 11 before pairing with 11:
11 x 11 = 121
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 1331:
(1, 1331), (11, 121)
So, to list all the factors of 1331: 1, 11, 121, 1331
The negative factors of 1331 would be: -1, -11, -121, -1331
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!