Q: What are the prime factors of the number 647,341,152?

 A: 2, 3, 47, 53, 2707

Why are those the prime factors of the number 647,341,152?

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 647,341,152

647,341,152
Factor Arrows
2323,670,576
Factor Arrows
2161,835,288
Factor Arrows
280,917,644
Factor Arrows
240,458,822
Factor Arrows
220,229,411
Factor Arrows
36,743,137
Factor Arrows
47143,471
Factor Arrows
532,707

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, 47, 53, 2707

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 47 x 53 x 2,707 = 647,341,152

This can also be written as 25 x 31 x 471 x 531 x 2,7071 = 647,341,152

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


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