Q: What are the prime factors of the number 245,034,144?

 A: 2, 3, 373, 2281

Why are those the prime factors of the number 245,034,144?

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 245,034,144

245,034,144
Factor Arrows
2122,517,072
Factor Arrows
261,258,536
Factor Arrows
230,629,268
Factor Arrows
215,314,634
Factor Arrows
27,657,317
Factor Arrows
32,552,439
Factor Arrows
3850,813
Factor Arrows
3732,281

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, 373, 2281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 373 x 2,281 = 245,034,144

This can also be written as 25 x 32 x 3731 x 2,2811 = 245,034,144

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


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