Q: What are the prime factors of the number 162,553,497?

 A: 3, 29, 947, 1973

Why are those the prime factors of the number 162,553,497?

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 162,553,497

162,553,497
Factor Arrows
354,184,499
Factor Arrows
291,868,431
Factor Arrows
9471,973

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, 29, 947, 1973

We can check our work by multiplying all of the prime factors together: 3 x 29 x 947 x 1,973 = 162,553,497

This can also be written as 31 x 291 x 9471 x 1,9731 = 162,553,497

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


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