Q: What are the prime factors of the number 403,515,248?

 A: 2, 3623, 6961

Why are those the prime factors of the number 403,515,248?

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 403,515,248

403,515,248
Factor Arrows
2201,757,624
Factor Arrows
2100,878,812
Factor Arrows
250,439,406
Factor Arrows
225,219,703
Factor Arrows
3,6236,961

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, 3623, 6961

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3,623 x 6,961 = 403,515,248

This can also be written as 24 x 3,6231 x 6,9611 = 403,515,248

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


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