As your math tutor, I’m here to help you break down factor pairs of 624 step by step!
Factor pairs of 624 are any two numbers that, when multiplied together, equal 624. The question to ask is “what two numbers multiplied together equal 624?” Every factor can be paired with another factor, and multiplying the two will result in 624.
To find the factor pairs of 624, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 624. 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 624 by the smallest prime factor, in this case, 2:
624 ÷ 2 = 312
2 and 312 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 312 as the new focus. Find the smallest prime factor that isn’t 1, and divide 312 by that number. In this case, 2 is the new smallest prime factor:
312 ÷ 2 = 156
Remember that this new factor pair is only for the factors of 312, not 624. So, to finish the factor pair for 624, you’d multiply 2 and 2 before pairing with 156:
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 624:
(1, 624), (2, 312), (3, 208), (4, 156), (6, 104), (8, 78), (12, 52), (13, 48), (16, 39), (24, 26)
So, to list all the factors of 624: 1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624
The negative factors of 624 would be: -1, -2, -3, -4, -6, -8, -12, -13, -16, -24, -26, -39, -48, -52, -78, -104, -156, -208, -312, -624
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!