Q: What are the prime factors of the number 147,722,064?

 A: 2, 3, 7, 181, 347

Why are those the prime factors of the number 147,722,064?

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 147,722,064

147,722,064
Factor Arrows
273,861,032
Factor Arrows
236,930,516
Factor Arrows
218,465,258
Factor Arrows
29,232,629
Factor Arrows
33,077,543
Factor Arrows
7439,649
Factor Arrows
762,807
Factor Arrows
181347

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, 7, 181, 347

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 7 x 181 x 347 = 147,722,064

This can also be written as 24 x 31 x 72 x 1811 x 3471 = 147,722,064

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


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