Q: What are the prime factors of the number 444,633,420?

 A: 2, 3, 5, 7, 11, 157, 613

Why are those the prime factors of the number 444,633,420?

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 444,633,420

444,633,420
Factor Arrows
2222,316,710
Factor Arrows
2111,158,355
Factor Arrows
337,052,785
Factor Arrows
57,410,557
Factor Arrows
71,058,651
Factor Arrows
1196,241
Factor Arrows
157613

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, 7, 11, 157, 613

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 11 x 157 x 613 = 444,633,420

This can also be written as 22 x 31 x 51 x 71 x 111 x 1571 x 6131 = 444,633,420

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


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