As your math tutor, I’m here to help you break down factor pairs of 756 step by step!
Factor pairs of 756 are any two numbers that, when multiplied together, equal 756. The question to ask is “what two numbers multiplied together equal 756?” Every factor can be paired with another factor, and multiplying the two will result in 756.
To find the factor pairs of 756, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 756. 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 756 by the smallest prime factor, in this case, 2:
756 ÷ 2 = 378
2 and 378 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 378 as the new focus. Find the smallest prime factor that isn’t 1, and divide 378 by that number. In this case, 2 is the new smallest prime factor:
378 ÷ 2 = 189
Remember that this new factor pair is only for the factors of 378, not 756. So, to finish the factor pair for 756, you’d multiply 2 and 2 before pairing with 189:
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 756:
(1, 756), (2, 378), (3, 252), (4, 189), (6, 126), (7, 108), (9, 84), (12, 63), (14, 54), (18, 42), (21, 36), (27, 28)
So, to list all the factors of 756: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
The negative factors of 756 would be: -1, -2, -3, -4, -6, -7, -9, -12, -14, -18, -21, -27, -28, -36, -42, -54, -63, -84, -108, -126, -189, -252, -378, -756
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!