Q: What are the prime factors of the number 148,742,048?

 A: 2, 7, 13, 7297

Why are those the prime factors of the number 148,742,048?

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 148,742,048

148,742,048
Factor Arrows
274,371,024
Factor Arrows
237,185,512
Factor Arrows
218,592,756
Factor Arrows
29,296,378
Factor Arrows
24,648,189
Factor Arrows
7664,027
Factor Arrows
794,861
Factor Arrows
137,297

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, 7, 13, 7297

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 7 x 13 x 7,297 = 148,742,048

This can also be written as 25 x 72 x 131 x 7,2971 = 148,742,048

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


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