Q: What are the prime factors of the number 225,042,246?

 A: 2, 3, 11, 13, 151, 193

Why are those the prime factors of the number 225,042,246?

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 225,042,246

225,042,246
Factor Arrows
2112,521,123
Factor Arrows
337,507,041
Factor Arrows
312,502,347
Factor Arrows
34,167,449
Factor Arrows
11378,859
Factor Arrows
1329,143
Factor Arrows
151193

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, 11, 13, 151, 193

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 13 x 151 x 193 = 225,042,246

This can also be written as 21 x 33 x 111 x 131 x 1511 x 1931 = 225,042,246

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


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