Q: What are the prime factors of the number 421,043,410?

 A: 2, 5, 67, 628423

Why are those the prime factors of the number 421,043,410?

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 421,043,410

421,043,410
Factor Arrows
2210,521,705
Factor Arrows
542,104,341
Factor Arrows
67628,423

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, 5, 67, 628423

We can check our work by multiplying all of the prime factors together: 2 x 5 x 67 x 628,423 = 421,043,410

This can also be written as 21 x 51 x 671 x 628,4231 = 421,043,410

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


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