Q: What are the prime factors of the number 35,067,520?

 A: 2, 5, 157, 349

Why are those the prime factors of the number 35,067,520?

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 35,067,520

35,067,520
Factor Arrows
217,533,760
Factor Arrows
28,766,880
Factor Arrows
24,383,440
Factor Arrows
22,191,720
Factor Arrows
21,095,860
Factor Arrows
2547,930
Factor Arrows
2273,965
Factor Arrows
554,793
Factor Arrows
157349

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, 157, 349

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 157 x 349 = 35,067,520

This can also be written as 27 x 51 x 1571 x 3491 = 35,067,520

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


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