Q: What are the prime factors of the number 347,740,162?

 A: 2, 7, 11, 199, 1621

Why are those the prime factors of the number 347,740,162?

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 347,740,162

347,740,162
Factor Arrows
2173,870,081
Factor Arrows
724,838,583
Factor Arrows
73,548,369
Factor Arrows
11322,579
Factor Arrows
1991,621

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, 7, 11, 199, 1621

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 11 x 199 x 1,621 = 347,740,162

This can also be written as 21 x 72 x 111 x 1991 x 1,6211 = 347,740,162

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


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