Q: What are the prime factors of the number 464,380,398?

 A: 2, 3, 17, 47, 229

Why are those the prime factors of the number 464,380,398?

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 464,380,398

464,380,398
Factor Arrows
2232,190,199
Factor Arrows
377,396,733
Factor Arrows
325,798,911
Factor Arrows
38,599,637
Factor Arrows
17505,861
Factor Arrows
4710,763
Factor Arrows
47229

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, 17, 47, 229

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 17 x 47 x 47 x 229 = 464,380,398

This can also be written as 21 x 33 x 171 x 472 x 2291 = 464,380,398

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


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