Q: What are the prime factors of the number 355,641,360?

 A: 2, 3, 5, 17, 67, 1301

Why are those the prime factors of the number 355,641,360?

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 355,641,360

355,641,360
Factor Arrows
2177,820,680
Factor Arrows
288,910,340
Factor Arrows
244,455,170
Factor Arrows
222,227,585
Factor Arrows
37,409,195
Factor Arrows
51,481,839
Factor Arrows
1787,167
Factor Arrows
671,301

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, 17, 67, 1301

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 17 x 67 x 1,301 = 355,641,360

This can also be written as 24 x 31 x 51 x 171 x 671 x 1,3011 = 355,641,360

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


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