Q: What are the prime factors of the number 420,403,332?

 A: 2, 3, 35033611

Why are those the prime factors of the number 420,403,332?

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 420,403,332

420,403,332
Factor Arrows
2210,201,666
Factor Arrows
2105,100,833
Factor Arrows
335,033,611

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, 35033611

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 35,033,611 = 420,403,332

This can also be written as 22 x 31 x 35,033,6111 = 420,403,332

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


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