Q: What are the prime factors of the number 312,501,224?

 A: 2, 7, 281, 2837

Why are those the prime factors of the number 312,501,224?

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 312,501,224

312,501,224
Factor Arrows
2156,250,612
Factor Arrows
278,125,306
Factor Arrows
239,062,653
Factor Arrows
75,580,379
Factor Arrows
7797,197
Factor Arrows
2812,837

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, 7, 281, 2837

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 281 x 2,837 = 312,501,224

This can also be written as 23 x 72 x 2811 x 2,8371 = 312,501,224

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


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