Q: What are the prime factors of the number 532,541,646?

 A: 2, 3, 7, 13, 89, 281

Why are those the prime factors of the number 532,541,646?

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 532,541,646

532,541,646
Factor Arrows
2266,270,823
Factor Arrows
388,756,941
Factor Arrows
329,585,647
Factor Arrows
74,226,521
Factor Arrows
13325,117
Factor Arrows
1325,009
Factor Arrows
89281

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, 13, 89, 281

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 13 x 13 x 89 x 281 = 532,541,646

This can also be written as 21 x 32 x 71 x 132 x 891 x 2811 = 532,541,646

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


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