Q: What are the prime factors of the number 420,444,134?

 A: 2, 11, 31, 631, 977

Why are those the prime factors of the number 420,444,134?

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 420,444,134

420,444,134
Factor Arrows
2210,222,067
Factor Arrows
1119,111,097
Factor Arrows
31616,487
Factor Arrows
631977

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, 11, 31, 631, 977

We can check our work by multiplying all of the prime factors together: 2 x 11 x 31 x 631 x 977 = 420,444,134

This can also be written as 21 x 111 x 311 x 6311 x 9771 = 420,444,134

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


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