Q: What are the prime factors of the number 286,281,144?

 A: 2, 3, 97, 179, 229

Why are those the prime factors of the number 286,281,144?

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 286,281,144

286,281,144
Factor Arrows
2143,140,572
Factor Arrows
271,570,286
Factor Arrows
235,785,143
Factor Arrows
311,928,381
Factor Arrows
33,976,127
Factor Arrows
9740,991
Factor Arrows
179229

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, 97, 179, 229

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 97 x 179 x 229 = 286,281,144

This can also be written as 23 x 32 x 971 x 1791 x 2291 = 286,281,144

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


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