Q: What are the prime factors of the number 563,421,502?

 A: 2, 7, 1117, 5147

Why are those the prime factors of the number 563,421,502?

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 563,421,502

563,421,502
Factor Arrows
2281,710,751
Factor Arrows
740,244,393
Factor Arrows
75,749,199
Factor Arrows
1,1175,147

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, 7, 1117, 5147

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 1,117 x 5,147 = 563,421,502

This can also be written as 21 x 72 x 1,1171 x 5,1471 = 563,421,502

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


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