Q: What are the prime factors of the number 361,350,780?

 A: 2, 3, 5, 7, 103, 8353

Why are those the prime factors of the number 361,350,780?

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 361,350,780

361,350,780
Factor Arrows
2180,675,390
Factor Arrows
290,337,695
Factor Arrows
330,112,565
Factor Arrows
56,022,513
Factor Arrows
7860,359
Factor Arrows
1038,353

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, 7, 103, 8353

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 103 x 8,353 = 361,350,780

This can also be written as 22 x 31 x 51 x 71 x 1031 x 8,3531 = 361,350,780

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


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