Q: What are the prime factors of the number 738,473,625?

 A: 3, 5, 17, 61, 211

Why are those the prime factors of the number 738,473,625?

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 738,473,625

738,473,625
Factor Arrows
3246,157,875
Factor Arrows
382,052,625
Factor Arrows
327,350,875
Factor Arrows
55,470,175
Factor Arrows
51,094,035
Factor Arrows
5218,807
Factor Arrows
1712,871
Factor Arrows
61211

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:

3, 5, 17, 61, 211

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 5 x 17 x 61 x 211 = 738,473,625

This can also be written as 33 x 53 x 171 x 611 x 2111 = 738,473,625

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


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