Q: What are the prime factors of the number 103,423,250?

 A: 2, 5, 7, 113, 523

Why are those the prime factors of the number 103,423,250?

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 103,423,250

103,423,250
Factor Arrows
251,711,625
Factor Arrows
510,342,325
Factor Arrows
52,068,465
Factor Arrows
5413,693
Factor Arrows
759,099
Factor Arrows
113523

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, 113, 523

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 7 x 113 x 523 = 103,423,250

This can also be written as 21 x 53 x 71 x 1131 x 5231 = 103,423,250

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


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