Q: What are the prime factors of the number 525,435,420?

 A: 2, 3, 5, 97, 90281

Why are those the prime factors of the number 525,435,420?

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 525,435,420

525,435,420
Factor Arrows
2262,717,710
Factor Arrows
2131,358,855
Factor Arrows
343,786,285
Factor Arrows
58,757,257
Factor Arrows
9790,281

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, 97, 90281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 97 x 90,281 = 525,435,420

This can also be written as 22 x 31 x 51 x 971 x 90,2811 = 525,435,420

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


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