Q: What are the prime factors of the number 563,853,620?

 A: 2, 5, 11, 17, 107, 1409

Why are those the prime factors of the number 563,853,620?

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 563,853,620

563,853,620
Factor Arrows
2281,926,810
Factor Arrows
2140,963,405
Factor Arrows
528,192,681
Factor Arrows
112,562,971
Factor Arrows
17150,763
Factor Arrows
1071,409

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, 11, 17, 107, 1409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 17 x 107 x 1,409 = 563,853,620

This can also be written as 22 x 51 x 111 x 171 x 1071 x 1,4091 = 563,853,620

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


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