As your math tutor, I’m here to help you break down factor pairs of 1635 step by step!
Factor pairs of 1635 are any two numbers that, when multiplied together, equal 1635. The question to ask is “what two numbers multiplied together equal 1635?” Every factor can be paired with another factor, and multiplying the two will result in 1635.
To find the factor pairs of 1635, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 1635. 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 3.
Step 2:
Divide 1635 by the smallest prime factor, in this case, 3:
1635 ÷ 3 = 545
3 and 545 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 545 as the new focus. Find the smallest prime factor that isn’t 1, and divide 545 by that number. In this case, 5 is the new smallest prime factor:
545 ÷ 5 = 109
Remember that this new factor pair is only for the factors of 545, not 1635. So, to finish the factor pair for 1635, you’d multiply 3 and 5 before pairing with 109:
3 x 5 = 15
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 1635:
(1, 1635), (3, 545), (5, 327), (15, 109)
So, to list all the factors of 1635: 1, 3, 5, 15, 109, 327, 545, 1635
The negative factors of 1635 would be: -1, -3, -5, -15, -109, -327, -545, -1635
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!