Q: What are the prime factors of the number 346,247,616?

 A: 2, 3, 11, 13, 12611

Why are those the prime factors of the number 346,247,616?

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 346,247,616

346,247,616
Factor Arrows
2173,123,808
Factor Arrows
286,561,904
Factor Arrows
243,280,952
Factor Arrows
221,640,476
Factor Arrows
210,820,238
Factor Arrows
25,410,119
Factor Arrows
31,803,373
Factor Arrows
11163,943
Factor Arrows
1312,611

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, 11, 13, 12611

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 11 x 13 x 12,611 = 346,247,616

This can also be written as 26 x 31 x 111 x 131 x 12,6111 = 346,247,616

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


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