Q: What are the prime factors of the number 430,154,450?

 A: 2, 5, 11, 31, 25229

Why are those the prime factors of the number 430,154,450?

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 430,154,450

430,154,450
Factor Arrows
2215,077,225
Factor Arrows
543,015,445
Factor Arrows
58,603,089
Factor Arrows
11782,099
Factor Arrows
3125,229

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, 31, 25229

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 11 x 31 x 25,229 = 430,154,450

This can also be written as 21 x 52 x 111 x 311 x 25,2291 = 430,154,450

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


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