Q: What are the prime factors of the number 312,207,312?

 A: 2, 3, 17, 53, 7219

Why are those the prime factors of the number 312,207,312?

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 312,207,312

312,207,312
Factor Arrows
2156,103,656
Factor Arrows
278,051,828
Factor Arrows
239,025,914
Factor Arrows
219,512,957
Factor Arrows
36,504,319
Factor Arrows
17382,607
Factor Arrows
537,219

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, 17, 53, 7219

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 53 x 7,219 = 312,207,312

This can also be written as 24 x 31 x 171 x 531 x 7,2191 = 312,207,312

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


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