Q: What are the prime factors of the number 6,227,200?

 A: 2, 5, 7, 139

Why are those the prime factors of the number 6,227,200?

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 6,227,200

6,227,200
Factor Arrows
23,113,600
Factor Arrows
21,556,800
Factor Arrows
2778,400
Factor Arrows
2389,200
Factor Arrows
2194,600
Factor Arrows
297,300
Factor Arrows
248,650
Factor Arrows
224,325
Factor Arrows
54,865
Factor Arrows
5973
Factor Arrows
7139

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, 5, 7, 139

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 2 x 2 x 5 x 5 x 7 x 139 = 6,227,200

This can also be written as 28 x 52 x 71 x 1391 = 6,227,200

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


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