Q: What are the prime factors of the number 145,901,424?

 A: 2, 3, 743, 4091

Why are those the prime factors of the number 145,901,424?

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 145,901,424

145,901,424
Factor Arrows
272,950,712
Factor Arrows
236,475,356
Factor Arrows
218,237,678
Factor Arrows
29,118,839
Factor Arrows
33,039,613
Factor Arrows
7434,091

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, 743, 4091

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 743 x 4,091 = 145,901,424

This can also be written as 24 x 31 x 7431 x 4,0911 = 145,901,424

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


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