Q: What are the prime factors of the number 735,440?

 A: 2, 5, 29, 317

Why are those the prime factors of the number 735,440?

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 735,440

735,440
Factor Arrows
2367,720
Factor Arrows
2183,860
Factor Arrows
291,930
Factor Arrows
245,965
Factor Arrows
59,193
Factor Arrows
29317

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, 5, 29, 317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 29 x 317 = 735,440

This can also be written as 24 x 51 x 291 x 3171 = 735,440

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


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