Q: What are the prime factors of the number 197,616,856?

 A: 2, 71, 139, 2503

Why are those the prime factors of the number 197,616,856?

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 197,616,856

197,616,856
Factor Arrows
298,808,428
Factor Arrows
249,404,214
Factor Arrows
224,702,107
Factor Arrows
71347,917
Factor Arrows
1392,503

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, 71, 139, 2503

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 71 x 139 x 2,503 = 197,616,856

This can also be written as 23 x 711 x 1391 x 2,5031 = 197,616,856

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


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