Q: What are the prime factors of the number 745,343,850?

 A: 2, 3, 5, 31, 89, 1801

Why are those the prime factors of the number 745,343,850?

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 745,343,850

745,343,850
Factor Arrows
2372,671,925
Factor Arrows
3124,223,975
Factor Arrows
524,844,795
Factor Arrows
54,968,959
Factor Arrows
31160,289
Factor Arrows
891,801

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, 5, 31, 89, 1801

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 31 x 89 x 1,801 = 745,343,850

This can also be written as 21 x 31 x 52 x 311 x 891 x 1,8011 = 745,343,850

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


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