Q: What are the prime factors of the number 355,414,000?

 A: 2, 5, 19, 47, 199

Why are those the prime factors of the number 355,414,000?

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 355,414,000

355,414,000
Factor Arrows
2177,707,000
Factor Arrows
288,853,500
Factor Arrows
244,426,750
Factor Arrows
222,213,375
Factor Arrows
54,442,675
Factor Arrows
5888,535
Factor Arrows
5177,707
Factor Arrows
199,353
Factor Arrows
47199

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, 19, 47, 199

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 5 x 19 x 47 x 199 = 355,414,000

This can also be written as 24 x 53 x 191 x 471 x 1991 = 355,414,000

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


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