Q: What are the prime factors of the number 345,501,504?

 A: 2, 3, 179, 1117

Why are those the prime factors of the number 345,501,504?

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 345,501,504

345,501,504
Factor Arrows
2172,750,752
Factor Arrows
286,375,376
Factor Arrows
243,187,688
Factor Arrows
221,593,844
Factor Arrows
210,796,922
Factor Arrows
25,398,461
Factor Arrows
31,799,487
Factor Arrows
3599,829
Factor Arrows
3199,943
Factor Arrows
1791,117

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, 179, 1117

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 3 x 3 x 3 x 179 x 1,117 = 345,501,504

This can also be written as 26 x 33 x 1791 x 1,1171 = 345,501,504

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


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