As your math tutor, I’m here to help you break down factor pairs of 430 step by step!
Factor pairs of 430 are any two numbers that, when multiplied together, equal 430. The question to ask is “what two numbers multiplied together equal 430?” Every factor can be paired with another factor, and multiplying the two will result in 430.
To find the factor pairs of 430, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 430. 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 430 by the smallest prime factor, in this case, 2:
430 ÷ 2 = 215
2 and 215 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 215 as the new focus. Find the smallest prime factor that isn’t 1, and divide 215 by that number. In this case, 5 is the new smallest prime factor:
215 ÷ 5 = 43
Remember that this new factor pair is only for the factors of 215, not 430. So, to finish the factor pair for 430, you’d multiply 2 and 5 before pairing with 43:
2 x 5 = 10
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 430:
(1, 430), (2, 215), (5, 86), (10, 43)
So, to list all the factors of 430: 1, 2, 5, 10, 43, 86, 215, 430
The negative factors of 430 would be: -1, -2, -5, -10, -43, -86, -215, -430
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!