Q: What are the prime factors of the number 663,112,464?

 A: 2, 3, 7, 19, 241, 431

Why are those the prime factors of the number 663,112,464?

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 663,112,464

663,112,464
Factor Arrows
2331,556,232
Factor Arrows
2165,778,116
Factor Arrows
282,889,058
Factor Arrows
241,444,529
Factor Arrows
313,814,843
Factor Arrows
71,973,549
Factor Arrows
19103,871
Factor Arrows
241431

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, 7, 19, 241, 431

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 19 x 241 x 431 = 663,112,464

This can also be written as 24 x 31 x 71 x 191 x 2411 x 4311 = 663,112,464

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


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