Q: What are the prime factors of the number 213,949,448?

 A: 2, 61, 263, 1667

Why are those the prime factors of the number 213,949,448?

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 213,949,448

213,949,448
Factor Arrows
2106,974,724
Factor Arrows
253,487,362
Factor Arrows
226,743,681
Factor Arrows
61438,421
Factor Arrows
2631,667

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, 61, 263, 1667

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 61 x 263 x 1,667 = 213,949,448

This can also be written as 23 x 611 x 2631 x 1,6671 = 213,949,448

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


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