As your math tutor, I’m here to help you break down factor pairs of 2147 step by step!
Factor pairs of 2147 are any two numbers that, when multiplied together, equal 2147. The question to ask is “what two numbers multiplied together equal 2147?” Every factor can be paired with another factor, and multiplying the two will result in 2147.
To find the factor pairs of 2147, follow these steps:
Step 1:
Find the smallest prime number that is larger than 1, and is a factor of 2147. 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 19.
Step 2:
Divide 2147 by the smallest prime factor, in this case, 19:
2147 ÷ 19 = 113
19 and 113 will make a new factor pair.
Step 3:
Repeat Steps 1 and 2, using 113 as the new focus. Find the smallest prime factor that isn’t 1, and divide 113 by that number. In this case, 113 is the new smallest prime factor:
113 ÷ 113 = 1
Remember that this new factor pair is only for the factors of 113, not 2147. So, to finish the factor pair for 2147, you’d multiply 19 and 113 before pairing with 1:
19 x 113 = 2147
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 2147:
(1, 2147), (19, 113)
So, to list all the factors of 2147: 1, 19, 113, 2147
The negative factors of 2147 would be: -1, -19, -113, -2147
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!