As your math tutor, I’m here to help you break down factor pairs of 1121 step by step!
Factor pairs of 1121 are any two numbers that, when multiplied together, equal 1121. The question to ask is “what two numbers multiplied together equal 1121?” Every factor can be paired with another factor, and multiplying the two will result in 1121.
To find the factor pairs of 1121, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 1121. 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 19.
Step 2:
Divide 1121 by the smallest prime factor, in this case, 19:
1121 ÷ 19 = 59
19 and 59 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 59 as the new focus. Find the smallest prime factor that isn’t 1, and divide 59 by that number. In this case, 59 is the new smallest prime factor:
59 ÷ 59 = 1
Remember that this new factor pair is only for the factors of 59, not 1121. So, to finish the factor pair for 1121, you’d multiply 19 and 59 before pairing with 1:
19 x 59 = 1121
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 1121:
(1, 1121), (19, 59)
So, to list all the factors of 1121: 1, 19, 59, 1121
The negative factors of 1121 would be: -1, -19, -59, -1121
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!