Q: What are the prime factors of the number 47,086,902?

 A: 2, 3, 19, 131, 1051

Why are those the prime factors of the number 47,086,902?

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 47,086,902

47,086,902
Factor Arrows
223,543,451
Factor Arrows
37,847,817
Factor Arrows
32,615,939
Factor Arrows
19137,681
Factor Arrows
1311,051

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, 19, 131, 1051

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 19 x 131 x 1,051 = 47,086,902

This can also be written as 21 x 32 x 191 x 1311 x 1,0511 = 47,086,902

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


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