Q: What are the prime factors of the number 67,210,624?

 A: 2, 13, 239

Why are those the prime factors of the number 67,210,624?

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 67,210,624

67,210,624
Factor Arrows
233,605,312
Factor Arrows
216,802,656
Factor Arrows
28,401,328
Factor Arrows
24,200,664
Factor Arrows
22,100,332
Factor Arrows
21,050,166
Factor Arrows
2525,083
Factor Arrows
1340,391
Factor Arrows
133,107
Factor Arrows
13239

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, 13, 239

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 13 x 13 x 239 = 67,210,624

This can also be written as 27 x 133 x 2391 = 67,210,624

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


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