Q: What are the prime factors of the number 162,603,364?

 A: 2, 7, 11, 53, 1423

Why are those the prime factors of the number 162,603,364?

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 162,603,364

162,603,364
Factor Arrows
281,301,682
Factor Arrows
240,650,841
Factor Arrows
75,807,263
Factor Arrows
7829,609
Factor Arrows
1175,419
Factor Arrows
531,423

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, 7, 11, 53, 1423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 11 x 53 x 1,423 = 162,603,364

This can also be written as 22 x 72 x 111 x 531 x 1,4231 = 162,603,364

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


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