Q: What are the prime factors of the number 225,420,048?

 A: 2, 3, 7, 151, 1481

Why are those the prime factors of the number 225,420,048?

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 225,420,048

225,420,048
Factor Arrows
2112,710,024
Factor Arrows
256,355,012
Factor Arrows
228,177,506
Factor Arrows
214,088,753
Factor Arrows
34,696,251
Factor Arrows
31,565,417
Factor Arrows
7223,631
Factor Arrows
1511,481

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, 7, 151, 1481

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 151 x 1,481 = 225,420,048

This can also be written as 24 x 32 x 71 x 1511 x 1,4811 = 225,420,048

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


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