Q: What are the prime factors of the number 452,021,031?

 A: 3, 7, 11, 43, 197

Why are those the prime factors of the number 452,021,031?

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 452,021,031

452,021,031
Factor Arrows
3150,673,677
Factor Arrows
350,224,559
Factor Arrows
77,174,937
Factor Arrows
71,024,991
Factor Arrows
1193,181
Factor Arrows
118,471
Factor Arrows
43197

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:

3, 7, 11, 43, 197

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 11 x 11 x 43 x 197 = 452,021,031

This can also be written as 32 x 72 x 112 x 431 x 1971 = 452,021,031

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


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