Q: What are the prime factors of the number 147,646,464?

 A: 2, 3, 7, 3433

Why are those the prime factors of the number 147,646,464?

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 147,646,464

147,646,464
Factor Arrows
273,823,232
Factor Arrows
236,911,616
Factor Arrows
218,455,808
Factor Arrows
29,227,904
Factor Arrows
24,613,952
Factor Arrows
22,306,976
Factor Arrows
21,153,488
Factor Arrows
2576,744
Factor Arrows
2288,372
Factor Arrows
2144,186
Factor Arrows
272,093
Factor Arrows
324,031
Factor Arrows
73,433

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, 3433

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7 x 3,433 = 147,646,464

This can also be written as 211 x 31 x 71 x 3,4331 = 147,646,464

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


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