As your math tutor, I’m here to help you break down factor pairs of 2555 step by step!
Factor pairs of 2555 are any two numbers that, when multiplied together, equal 2555. The question to ask is “what two numbers multiplied together equal 2555?” Every factor can be paired with another factor, and multiplying the two will result in 2555.
To find the factor pairs of 2555, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 2555. 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 5.
Step 2:
Divide 2555 by the smallest prime factor, in this case, 5:
2555 ÷ 5 = 511
5 and 511 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 511 as the new focus. Find the smallest prime factor that isn’t 1, and divide 511 by that number. In this case, 7 is the new smallest prime factor:
511 ÷ 7 = 73
Remember that this new factor pair is only for the factors of 511, not 2555. So, to finish the factor pair for 2555, you’d multiply 5 and 7 before pairing with 73:
5 x 7 = 35
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 2555:
(1, 2555), (5, 511), (7, 365), (35, 73)
So, to list all the factors of 2555: 1, 5, 7, 35, 73, 365, 511, 2555
The negative factors of 2555 would be: -1, -5, -7, -35, -73, -365, -511, -2555
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!