Q: What are the prime factors of the number 211,233,400?

 A: 2, 5, 7, 150881

Why are those the prime factors of the number 211,233,400?

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 211,233,400

211,233,400
Factor Arrows
2105,616,700
Factor Arrows
252,808,350
Factor Arrows
226,404,175
Factor Arrows
55,280,835
Factor Arrows
51,056,167
Factor Arrows
7150,881

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, 150881

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 7 x 150,881 = 211,233,400

This can also be written as 23 x 52 x 71 x 150,8811 = 211,233,400

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


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