Q: What are the prime factors of the number 43,475,454?

 A: 2, 3, 11, 31, 787

Why are those the prime factors of the number 43,475,454?

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 43,475,454

43,475,454
Factor Arrows
221,737,727
Factor Arrows
37,245,909
Factor Arrows
32,415,303
Factor Arrows
3805,101
Factor Arrows
3268,367
Factor Arrows
1124,397
Factor Arrows
31787

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, 11, 31, 787

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 11 x 31 x 787 = 43,475,454

This can also be written as 21 x 34 x 111 x 311 x 7871 = 43,475,454

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


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