Q: What are the prime factors of the number 211,462,240?

 A: 2, 5, 11, 137, 877

Why are those the prime factors of the number 211,462,240?

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 211,462,240

211,462,240
Factor Arrows
2105,731,120
Factor Arrows
252,865,560
Factor Arrows
226,432,780
Factor Arrows
213,216,390
Factor Arrows
26,608,195
Factor Arrows
51,321,639
Factor Arrows
11120,149
Factor Arrows
137877

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, 11, 137, 877

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 137 x 877 = 211,462,240

This can also be written as 25 x 51 x 111 x 1371 x 8771 = 211,462,240

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


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