Q: What are the prime factors of the number 155,222,535?

 A: 3, 5, 13, 179, 4447

Why are those the prime factors of the number 155,222,535?

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 155,222,535

155,222,535
Factor Arrows
351,740,845
Factor Arrows
510,348,169
Factor Arrows
13796,013
Factor Arrows
1794,447

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:

3, 5, 13, 179, 4447

We can check our work by multiplying all of the prime factors together: 3 x 5 x 13 x 179 x 4,447 = 155,222,535

This can also be written as 31 x 51 x 131 x 1791 x 4,4471 = 155,222,535

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


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