Q: What are the prime factors of the number 425,436,402?

 A: 2, 3, 71, 157, 6361

Why are those the prime factors of the number 425,436,402?

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 425,436,402

425,436,402
Factor Arrows
2212,718,201
Factor Arrows
370,906,067
Factor Arrows
71998,677
Factor Arrows
1576,361

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, 71, 157, 6361

We can check our work by multiplying all of the prime factors together: 2 x 3 x 71 x 157 x 6,361 = 425,436,402

This can also be written as 21 x 31 x 711 x 1571 x 6,3611 = 425,436,402

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


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