Q: What are the prime factors of the number 145,523,472?

 A: 2, 3, 347, 8737

Why are those the prime factors of the number 145,523,472?

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 145,523,472

145,523,472
Factor Arrows
272,761,736
Factor Arrows
236,380,868
Factor Arrows
218,190,434
Factor Arrows
29,095,217
Factor Arrows
33,031,739
Factor Arrows
3478,737

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, 347, 8737

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 347 x 8,737 = 145,523,472

This can also be written as 24 x 31 x 3471 x 8,7371 = 145,523,472

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


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