Q: What are the prime factors of the number 5,697,888?

 A: 2, 3, 7, 61, 139

Why are those the prime factors of the number 5,697,888?

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 5,697,888

5,697,888
Factor Arrows
22,848,944
Factor Arrows
21,424,472
Factor Arrows
2712,236
Factor Arrows
2356,118
Factor Arrows
2178,059
Factor Arrows
359,353
Factor Arrows
78,479
Factor Arrows
61139

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, 7, 61, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 61 x 139 = 5,697,888

This can also be written as 25 x 31 x 71 x 611 x 1391 = 5,697,888

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


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