Q: What are the prime factors of the number 355,643,160?

 A: 2, 3, 5, 31, 95603

Why are those the prime factors of the number 355,643,160?

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 355,643,160

355,643,160
Factor Arrows
2177,821,580
Factor Arrows
288,910,790
Factor Arrows
244,455,395
Factor Arrows
314,818,465
Factor Arrows
52,963,693
Factor Arrows
3195,603

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, 5, 31, 95603

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 31 x 95,603 = 355,643,160

This can also be written as 23 x 31 x 51 x 311 x 95,6031 = 355,643,160

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


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