As your math tutor, I’m here to help you break down factor pairs of 429 step by step!
Factor pairs of 429 are any two numbers that, when multiplied together, equal 429. The question to ask is “what two numbers multiplied together equal 429?” Every factor can be paired with another factor, and multiplying the two will result in 429.
To find the factor pairs of 429, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 429. 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 429 by the smallest prime factor, in this case, 3:
429 ÷ 3 = 143
3 and 143 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 143 as the new focus. Find the smallest prime factor that isn’t 1, and divide 143 by that number. In this case, 11 is the new smallest prime factor:
143 ÷ 11 = 13
Remember that this new factor pair is only for the factors of 143, not 429. So, to finish the factor pair for 429, you’d multiply 3 and 11 before pairing with 13:
3 x 11 = 33
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 429:
(1, 429), (3, 143), (11, 39), (13, 33)
So, to list all the factors of 429: 1, 3, 11, 13, 33, 39, 143, 429
The negative factors of 429 would be: -1, -3, -11, -13, -33, -39, -143, -429
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!