Q: What are the prime factors of the number 354,402,100?

 A: 2, 5, 13, 179, 1523

Why are those the prime factors of the number 354,402,100?

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 354,402,100

354,402,100
Factor Arrows
2177,201,050
Factor Arrows
288,600,525
Factor Arrows
517,720,105
Factor Arrows
53,544,021
Factor Arrows
13272,617
Factor Arrows
1791,523

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, 13, 179, 1523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 13 x 179 x 1,523 = 354,402,100

This can also be written as 22 x 52 x 131 x 1791 x 1,5231 = 354,402,100

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


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