Q: What are the prime factors of the number 464,251,257?

 A: 3, 31, 20543

Why are those the prime factors of the number 464,251,257?

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 464,251,257

464,251,257
Factor Arrows
3154,750,419
Factor Arrows
351,583,473
Factor Arrows
317,194,491
Factor Arrows
35,731,497
Factor Arrows
31,910,499
Factor Arrows
3636,833
Factor Arrows
3120,543

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:

3, 31, 20543

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 31 x 20,543 = 464,251,257

This can also be written as 36 x 311 x 20,5431 = 464,251,257

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


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