As your math tutor, I’m here to help you break down factor pairs of 540 step by step!
Factor pairs of 540 are any two numbers that, when multiplied together, equal 540. The question to ask is “what two numbers multiplied together equal 540?” Every factor can be paired with another factor, and multiplying the two will result in 540.
To find the factor pairs of 540, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 540. 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 2.
Step 2:
Divide 540 by the smallest prime factor, in this case, 2:
540 ÷ 2 = 270
2 and 270 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 270 as the new focus. Find the smallest prime factor that isn’t 1, and divide 270 by that number. In this case, 2 is the new smallest prime factor:
270 ÷ 2 = 135
Remember that this new factor pair is only for the factors of 270, not 540. So, to finish the factor pair for 540, you’d multiply 2 and 2 before pairing with 135:
2 x 2 = 4
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 540:
(1, 540), (2, 270), (3, 180), (4, 135), (5, 108), (6, 90), (9, 60), (10, 54), (12, 45), (15, 36), (18, 30), (20, 27)
So, to list all the factors of 540: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540
The negative factors of 540 would be: -1, -2, -3, -4, -5, -6, -9, -10, -12, -15, -18, -20, -27, -30, -36, -45, -54, -60, -90, -108, -135, -180, -270, -540
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!