Q: What are the prime factors of the number 281,376,417?

 A: 3, 7, 53, 241, 1049

Why are those the prime factors of the number 281,376,417?

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 281,376,417

281,376,417
Factor Arrows
393,792,139
Factor Arrows
713,398,877
Factor Arrows
53252,809
Factor Arrows
2411,049

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:

3, 7, 53, 241, 1049

We can check our work by multiplying all of the prime factors together: 3 x 7 x 53 x 241 x 1,049 = 281,376,417

This can also be written as 31 x 71 x 531 x 2411 x 1,0491 = 281,376,417

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


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