Q: What are the prime factors of the number 348,432?

 A: 2, 3, 7, 17, 61

Why are those the prime factors of the number 348,432?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 348,432

348,432
Factor Arrows
2174,216
Factor Arrows
287,108
Factor Arrows
243,554
Factor Arrows
221,777
Factor Arrows
37,259
Factor Arrows
71,037
Factor Arrows
1761

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 17, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 17 x 61 = 348,432

This can also be written as 24 x 31 x 71 x 171 x 611 = 348,432

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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