Q: What are the prime factors of the number 361,370,310?

 A: 2, 3, 5, 7, 19, 41, 47

Why are those the prime factors of the number 361,370,310?

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 361,370,310

361,370,310
Factor Arrows
2180,685,155
Factor Arrows
360,228,385
Factor Arrows
512,045,677
Factor Arrows
71,720,811
Factor Arrows
1990,569
Factor Arrows
412,209
Factor Arrows
4747

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, 19, 41, 47

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 19 x 41 x 47 x 47 = 361,370,310

This can also be written as 21 x 31 x 51 x 71 x 191 x 411 x 472 = 361,370,310

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


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