Q: What are the prime factors of the number 417,163,152?

 A: 2, 3, 7, 1241557

Why are those the prime factors of the number 417,163,152?

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 417,163,152

417,163,152
Factor Arrows
2208,581,576
Factor Arrows
2104,290,788
Factor Arrows
252,145,394
Factor Arrows
226,072,697
Factor Arrows
38,690,899
Factor Arrows
71,241,557

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, 1241557

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 1,241,557 = 417,163,152

This can also be written as 24 x 31 x 71 x 1,241,5571 = 417,163,152

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


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