Q: What are the prime factors of the number 864,410,544?

 A: 2, 3, 41, 3571

Why are those the prime factors of the number 864,410,544?

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 864,410,544

864,410,544
Factor Arrows
2432,205,272
Factor Arrows
2216,102,636
Factor Arrows
2108,051,318
Factor Arrows
254,025,659
Factor Arrows
318,008,553
Factor Arrows
36,002,851
Factor Arrows
41146,411
Factor Arrows
413,571

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, 41, 3571

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 41 x 41 x 3,571 = 864,410,544

This can also be written as 24 x 32 x 412 x 3,5711 = 864,410,544

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


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