Q: What are the prime factors of the number 254,340,000?

 A: 2, 3, 5, 157

Why are those the prime factors of the number 254,340,000?

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 254,340,000

254,340,000
Factor Arrows
2127,170,000
Factor Arrows
263,585,000
Factor Arrows
231,792,500
Factor Arrows
215,896,250
Factor Arrows
27,948,125
Factor Arrows
32,649,375
Factor Arrows
3883,125
Factor Arrows
3294,375
Factor Arrows
398,125
Factor Arrows
519,625
Factor Arrows
53,925
Factor Arrows
5785
Factor Arrows
5157

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, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 x 5 x 5 x 5 x 157 = 254,340,000

This can also be written as 25 x 34 x 54 x 1571 = 254,340,000

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


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