Q: What are the prime factors of the number 464,440,636?

 A: 2, 11, 19, 31, 17921

Why are those the prime factors of the number 464,440,636?

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 464,440,636

464,440,636
Factor Arrows
2232,220,318
Factor Arrows
2116,110,159
Factor Arrows
1110,555,469
Factor Arrows
19555,551
Factor Arrows
3117,921

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, 11, 19, 31, 17921

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 19 x 31 x 17,921 = 464,440,636

This can also be written as 22 x 111 x 191 x 311 x 17,9211 = 464,440,636

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


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