As your math tutor, I’m here to help you break down factor pairs of 972 step by step!
Factor pairs of 972 are any two numbers that, when multiplied together, equal 972. The question to ask is “what two numbers multiplied together equal 972?” Every factor can be paired with another factor, and multiplying the two will result in 972.
To find the factor pairs of 972, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 972. 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 972 by the smallest prime factor, in this case, 2:
972 ÷ 2 = 486
2 and 486 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 486 as the new focus. Find the smallest prime factor that isn’t 1, and divide 486 by that number. In this case, 2 is the new smallest prime factor:
486 ÷ 2 = 243
Remember that this new factor pair is only for the factors of 486, not 972. So, to finish the factor pair for 972, you’d multiply 2 and 2 before pairing with 243:
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 972:
(1, 972), (2, 486), (3, 324), (4, 243), (6, 162), (9, 108), (12, 81), (18, 54), (27, 36)
So, to list all the factors of 972: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972
The negative factors of 972 would be: -1, -2, -3, -4, -6, -9, -12, -18, -27, -36, -54, -81, -108, -162, -243, -324, -486, -972
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!