Q: What are the prime factors of the number 312,311,104?

 A: 2, 7, 41, 347

Why are those the prime factors of the number 312,311,104?

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 312,311,104

312,311,104
Factor Arrows
2156,155,552
Factor Arrows
278,077,776
Factor Arrows
239,038,888
Factor Arrows
219,519,444
Factor Arrows
29,759,722
Factor Arrows
24,879,861
Factor Arrows
7697,123
Factor Arrows
799,589
Factor Arrows
714,227
Factor Arrows
41347

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, 41, 347

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 7 x 7 x 7 x 41 x 347 = 312,311,104

This can also be written as 26 x 73 x 411 x 3471 = 312,311,104

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


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