Q: What are the prime factors of the number 342,213,200?

 A: 2, 5, 7, 122219

Why are those the prime factors of the number 342,213,200?

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 342,213,200

342,213,200
Factor Arrows
2171,106,600
Factor Arrows
285,553,300
Factor Arrows
242,776,650
Factor Arrows
221,388,325
Factor Arrows
54,277,665
Factor Arrows
5855,533
Factor Arrows
7122,219

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, 7, 122219

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 7 x 122,219 = 342,213,200

This can also be written as 24 x 52 x 71 x 122,2191 = 342,213,200

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


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