Q: What are the prime factors of the number 122,464,430?

 A: 2, 5, 11, 17, 43, 1523

Why are those the prime factors of the number 122,464,430?

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 122,464,430

122,464,430
Factor Arrows
261,232,215
Factor Arrows
512,246,443
Factor Arrows
111,113,313
Factor Arrows
1765,489
Factor Arrows
431,523

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, 17, 43, 1523

We can check our work by multiplying all of the prime factors together: 2 x 5 x 11 x 17 x 43 x 1,523 = 122,464,430

This can also be written as 21 x 51 x 111 x 171 x 431 x 1,5231 = 122,464,430

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


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