Q: What are the prime factors of the number 43,147,300?

 A: 2, 5, 7, 53, 1163

Why are those the prime factors of the number 43,147,300?

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 43,147,300

43,147,300
Factor Arrows
221,573,650
Factor Arrows
210,786,825
Factor Arrows
52,157,365
Factor Arrows
5431,473
Factor Arrows
761,639
Factor Arrows
531,163

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, 5, 7, 53, 1163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 7 x 53 x 1,163 = 43,147,300

This can also be written as 22 x 52 x 71 x 531 x 1,1631 = 43,147,300

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


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