Q: What are the prime factors of the number 401,124,630?

 A: 2, 3, 5, 577, 23173

Why are those the prime factors of the number 401,124,630?

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 401,124,630

401,124,630
Factor Arrows
2200,562,315
Factor Arrows
366,854,105
Factor Arrows
513,370,821
Factor Arrows
57723,173

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, 577, 23173

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 577 x 23,173 = 401,124,630

This can also be written as 21 x 31 x 51 x 5771 x 23,1731 = 401,124,630

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


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