Q: What are the prime factors of the number 48,140,000?

 A: 2, 5, 29, 83

Why are those the prime factors of the number 48,140,000?

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 48,140,000

48,140,000
Factor Arrows
224,070,000
Factor Arrows
212,035,000
Factor Arrows
26,017,500
Factor Arrows
23,008,750
Factor Arrows
21,504,375
Factor Arrows
5300,875
Factor Arrows
560,175
Factor Arrows
512,035
Factor Arrows
52,407
Factor Arrows
2983

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, 29, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5 x 29 x 83 = 48,140,000

This can also be written as 25 x 54 x 291 x 831 = 48,140,000

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


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