Q: What are the prime factors of the number 402,134,250?

 A: 2, 3, 5, 7, 76597

Why are those the prime factors of the number 402,134,250?

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 402,134,250

402,134,250
Factor Arrows
2201,067,125
Factor Arrows
367,022,375
Factor Arrows
513,404,475
Factor Arrows
52,680,895
Factor Arrows
5536,179
Factor Arrows
776,597

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, 3, 5, 7, 76597

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 5 x 7 x 76,597 = 402,134,250

This can also be written as 21 x 31 x 53 x 71 x 76,5971 = 402,134,250

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


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