As your math tutor, I’m here to help you break down factor pairs of 1139 step by step!
Factor pairs of 1139 are any two numbers that, when multiplied together, equal 1139. The question to ask is “what two numbers multiplied together equal 1139?” Every factor can be paired with another factor, and multiplying the two will result in 1139.
To find the factor pairs of 1139, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 1139. 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 17.
Step 2:
Divide 1139 by the smallest prime factor, in this case, 17:
1139 ÷ 17 = 67
17 and 67 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 67 as the new focus. Find the smallest prime factor that isn’t 1, and divide 67 by that number. In this case, 67 is the new smallest prime factor:
67 ÷ 67 = 1
Remember that this new factor pair is only for the factors of 67, not 1139. So, to finish the factor pair for 1139, you’d multiply 17 and 67 before pairing with 1:
17 x 67 = 1139
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 1139:
(1, 1139), (17, 67)
So, to list all the factors of 1139: 1, 17, 67, 1139
The negative factors of 1139 would be: -1, -17, -67, -1139
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!